Home / 103,049.19-154,572.17-75,146.31

Finding the Fourth Proportional to 103,049.19, 154,572.17 and 75,146.31

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Solution

The fourth proportional to 103,049.19, 154,572.17 and 75,146.31 is: 112,718.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,049.19 : 154,572.17 = 75,146.31 : x
  2. Step 2: Convert to fraction form
    103,049.19/154,572.17 = 75,146.31/x
  3. Step 3: Cross multiply
    103,049.19x = 154,572.17 × 75,146.31
  4. Step 4: Simplify right side
    103,049.19x = 11,615,527,828.46
  5. Step 5: Solve for x
    x = 11,615,527,828.46/103,049.19
  6. Step 6: Final answer
    x = 112,718.28

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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.