Home / 108,005,021.80-161,755,590.30-105,840,183.40

Finding the Fourth Proportional to 108,005,021.80, 161,755,590.30 and 105,840,183.40

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Solution

The fourth proportional to 108,005,021.80, 161,755,590.30 and 105,840,183.40 is: 158,513,382.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,005,021.80 : 161,755,590.30 = 105,840,183.40 : x
  2. Step 2: Convert to fraction form
    108,005,021.80/161,755,590.30 = 105,840,183.40/x
  3. Step 3: Cross multiply
    108,005,021.80x = 161,755,590.30 × 105,840,183.40
  4. Step 4: Simplify right side
    108,005,021.80x = 17,120,241,343,327,264
  5. Step 5: Solve for x
    x = 17,120,241,343,327,264/108,005,021.80
  6. Step 6: Final answer
    x = 158,513,382.60

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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.