Home / 113,315.30-169,967.55-38,428.10

Finding the Fourth Proportional to 113,315.30, 169,967.55 and 38,428.10

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Solution

The fourth proportional to 113,315.30, 169,967.55 and 38,428.10 is: 57,640.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,315.30 : 169,967.55 = 38,428.10 : x
  2. Step 2: Convert to fraction form
    113,315.30/169,967.55 = 38,428.10/x
  3. Step 3: Cross multiply
    113,315.30x = 169,967.55 × 38,428.10
  4. Step 4: Simplify right side
    113,315.30x = 6,531,530,008.16
  5. Step 5: Solve for x
    x = 6,531,530,008.16/113,315.30
  6. Step 6: Final answer
    x = 57,640.32

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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.