Home / 102,123.30-153,091.56-42,963.14

Finding the Fourth Proportional to 102,123.30, 153,091.56 and 42,963.14

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Solution

The fourth proportional to 102,123.30, 153,091.56 and 42,963.14 is: 64,405.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,123.30 : 153,091.56 = 42,963.14 : x
  2. Step 2: Convert to fraction form
    102,123.30/153,091.56 = 42,963.14/x
  3. Step 3: Cross multiply
    102,123.30x = 153,091.56 × 42,963.14
  4. Step 4: Simplify right side
    102,123.30x = 6,577,294,125.10
  5. Step 5: Solve for x
    x = 6,577,294,125.10/102,123.30
  6. Step 6: Final answer
    x = 64,405.42

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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.