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Finding the Fourth Proportional to 101,419.20, 152,114.40 and 34,862.40

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Solution

The fourth proportional to 101,419.20, 152,114.40 and 34,862.40 is: 52,288.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,419.20 : 152,114.40 = 34,862.40 : x
  2. Step 2: Convert to fraction form
    101,419.20/152,114.40 = 34,862.40/x
  3. Step 3: Cross multiply
    101,419.20x = 152,114.40 × 34,862.40
  4. Step 4: Simplify right side
    101,419.20x = 5,303,073,058.56
  5. Step 5: Solve for x
    x = 5,303,073,058.56/101,419.20
  6. Step 6: Final answer
    x = 52,288.65

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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.