Home / 108,913.29-163,399.10-98,503.17

Finding the Fourth Proportional to 108,913.29, 163,399.10 and 98,503.17

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Solution

The fourth proportional to 108,913.29, 163,399.10 and 98,503.17 is: 147,781.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,913.29 : 163,399.10 = 98,503.17 : x
  2. Step 2: Convert to fraction form
    108,913.29/163,399.10 = 98,503.17/x
  3. Step 3: Cross multiply
    108,913.29x = 163,399.10 × 98,503.17
  4. Step 4: Simplify right side
    108,913.29x = 16,095,328,832.63
  5. Step 5: Solve for x
    x = 16,095,328,832.63/108,913.29
  6. Step 6: Final answer
    x = 147,781.13

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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.