Home / 102,909.03-154,381.91-36,387.78

Finding the Fourth Proportional to 102,909.03, 154,381.91 and 36,387.78

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Solution

The fourth proportional to 102,909.03, 154,381.91 and 36,387.78 is: 54,588.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,909.03 : 154,381.91 = 36,387.78 : x
  2. Step 2: Convert to fraction form
    102,909.03/154,381.91 = 36,387.78/x
  3. Step 3: Cross multiply
    102,909.03x = 154,381.91 × 36,387.78
  4. Step 4: Simplify right side
    102,909.03x = 5,617,614,795.12
  5. Step 5: Solve for x
    x = 5,617,614,795.12/102,909.03
  6. Step 6: Final answer
    x = 54,588.16

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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.