Home / 175,489.29-242,189.00-103,908.78

Finding the Fourth Proportional to 175,489.29, 242,189.00 and 103,908.78

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Solution

The fourth proportional to 175,489.29, 242,189.00 and 103,908.78 is: 143,402.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,489.29 : 242,189.00 = 103,908.78 : x
  2. Step 2: Convert to fraction form
    175,489.29/242,189.00 = 103,908.78/x
  3. Step 3: Cross multiply
    175,489.29x = 242,189.00 × 103,908.78
  4. Step 4: Simplify right side
    175,489.29x = 25,165,563,779.19
  5. Step 5: Solve for x
    x = 25,165,563,779.19/175,489.29
  6. Step 6: Final answer
    x = 143,402.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.