Home / 102,486.33-153,759.24-42,503.81

Finding the Fourth Proportional to 102,486.33, 153,759.24 and 42,503.81

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Solution

The fourth proportional to 102,486.33, 153,759.24 and 42,503.81 is: 63,768.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,486.33 : 153,759.24 = 42,503.81 : x
  2. Step 2: Convert to fraction form
    102,486.33/153,759.24 = 42,503.81/x
  3. Step 3: Cross multiply
    102,486.33x = 153,759.24 × 42,503.81
  4. Step 4: Simplify right side
    102,486.33x = 6,535,352,753.91
  5. Step 5: Solve for x
    x = 6,535,352,753.91/102,486.33
  6. Step 6: Final answer
    x = 63,768.04

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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.