Home / 102,109.19-153,165.18-38,932.70

Finding the Fourth Proportional to 102,109.19, 153,165.18 and 38,932.70

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Solution

The fourth proportional to 102,109.19, 153,165.18 and 38,932.70 is: 58,399.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,109.19 : 153,165.18 = 38,932.70 : x
  2. Step 2: Convert to fraction form
    102,109.19/153,165.18 = 38,932.70/x
  3. Step 3: Cross multiply
    102,109.19x = 153,165.18 × 38,932.70
  4. Step 4: Simplify right side
    102,109.19x = 5,963,134,003.39
  5. Step 5: Solve for x
    x = 5,963,134,003.39/102,109.19
  6. Step 6: Final answer
    x = 58,399.58

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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.