Home / 156,950.30-235,220.65-72,700.70

Finding the Fourth Proportional to 156,950.30, 235,220.65 and 72,700.70

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Solution

The fourth proportional to 156,950.30, 235,220.65 and 72,700.70 is: 108,956.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,950.30 : 235,220.65 = 72,700.70 : x
  2. Step 2: Convert to fraction form
    156,950.30/235,220.65 = 72,700.70/x
  3. Step 3: Cross multiply
    156,950.30x = 235,220.65 × 72,700.70
  4. Step 4: Simplify right side
    156,950.30x = 17,100,705,909.46
  5. Step 5: Solve for x
    x = 17,100,705,909.46/156,950.30
  6. Step 6: Final answer
    x = 108,956.18

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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.