Home / 102,624.04-153,936-74,721.64

Finding the Fourth Proportional to 102,624.04, 153,936 and 74,721.64

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Solution

The fourth proportional to 102,624.04, 153,936 and 74,721.64 is: 112,082.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,624.04 : 153,936 = 74,721.64 : x
  2. Step 2: Convert to fraction form
    102,624.04/153,936 = 74,721.64/x
  3. Step 3: Cross multiply
    102,624.04x = 153,936 × 74,721.64
  4. Step 4: Simplify right side
    102,624.04x = 11,502,350,375.04
  5. Step 5: Solve for x
    x = 11,502,350,375.04/102,624.04
  6. Step 6: Final answer
    x = 112,082.42

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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.