Home / 103,618.13-155,463.66-51,064.52

Finding the Fourth Proportional to 103,618.13, 155,463.66 and 51,064.52

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Solution

The fourth proportional to 103,618.13, 155,463.66 and 51,064.52 is: 76,614.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,618.13 : 155,463.66 = 51,064.52 : x
  2. Step 2: Convert to fraction form
    103,618.13/155,463.66 = 51,064.52/x
  3. Step 3: Cross multiply
    103,618.13x = 155,463.66 × 51,064.52
  4. Step 4: Simplify right side
    103,618.13x = 7,938,676,398.02
  5. Step 5: Solve for x
    x = 7,938,676,398.02/103,618.13
  6. Step 6: Final answer
    x = 76,614.75

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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.