Home / 134,956.20-202,434.30-72,748.20

Finding the Fourth Proportional to 134,956.20, 202,434.30 and 72,748.20

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Solution

The fourth proportional to 134,956.20, 202,434.30 and 72,748.20 is: 109,122.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,956.20 : 202,434.30 = 72,748.20 : x
  2. Step 2: Convert to fraction form
    134,956.20/202,434.30 = 72,748.20/x
  3. Step 3: Cross multiply
    134,956.20x = 202,434.30 × 72,748.20
  4. Step 4: Simplify right side
    134,956.20x = 14,726,730,943.26
  5. Step 5: Solve for x
    x = 14,726,730,943.26/134,956.20
  6. Step 6: Final answer
    x = 109,122.30

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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.