Home / 156,947.60-235,421.40-68,301.20

Finding the Fourth Proportional to 156,947.60, 235,421.40 and 68,301.20

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Solution

The fourth proportional to 156,947.60, 235,421.40 and 68,301.20 is: 102,451.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,947.60 : 235,421.40 = 68,301.20 : x
  2. Step 2: Convert to fraction form
    156,947.60/235,421.40 = 68,301.20/x
  3. Step 3: Cross multiply
    156,947.60x = 235,421.40 × 68,301.20
  4. Step 4: Simplify right side
    156,947.60x = 16,079,564,125.68
  5. Step 5: Solve for x
    x = 16,079,564,125.68/156,947.60
  6. Step 6: Final answer
    x = 102,451.80

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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.