Home / 102,345.48-153,331.18-74,195.71

Finding the Fourth Proportional to 102,345.48, 153,331.18 and 74,195.71

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Solution

The fourth proportional to 102,345.48, 153,331.18 and 74,195.71 is: 111,157.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,345.48 : 153,331.18 = 74,195.71 : x
  2. Step 2: Convert to fraction form
    102,345.48/153,331.18 = 74,195.71/x
  3. Step 3: Cross multiply
    102,345.48x = 153,331.18 × 74,195.71
  4. Step 4: Simplify right side
    102,345.48x = 11,376,515,196.42
  5. Step 5: Solve for x
    x = 11,376,515,196.42/102,345.48
  6. Step 6: Final answer
    x = 111,157.96

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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.