Home / 108,004,976.80-161,755,522.80-105,840,138.40

Finding the Fourth Proportional to 108,004,976.80, 161,755,522.80 and 105,840,138.40

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Solution

The fourth proportional to 108,004,976.80, 161,755,522.80 and 105,840,138.40 is: 158,513,315.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,004,976.80 : 161,755,522.80 = 105,840,138.40 : x
  2. Step 2: Convert to fraction form
    108,004,976.80/161,755,522.80 = 105,840,138.40/x
  3. Step 3: Cross multiply
    108,004,976.80x = 161,755,522.80 × 105,840,138.40
  4. Step 4: Simplify right side
    108,004,976.80x = 17,120,226,920,116,358
  5. Step 5: Solve for x
    x = 17,120,226,920,116,358/108,004,976.80
  6. Step 6: Final answer
    x = 158,513,315.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.