Home / 156,490.85-234,423.21-72,135.63

Finding the Fourth Proportional to 156,490.85, 234,423.21 and 72,135.63

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Solution

The fourth proportional to 156,490.85, 234,423.21 and 72,135.63 is: 108,059.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,490.85 : 234,423.21 = 72,135.63 : x
  2. Step 2: Convert to fraction form
    156,490.85/234,423.21 = 72,135.63/x
  3. Step 3: Cross multiply
    156,490.85x = 234,423.21 × 72,135.63
  4. Step 4: Simplify right side
    156,490.85x = 16,910,266,210.48
  5. Step 5: Solve for x
    x = 16,910,266,210.48/156,490.85
  6. Step 6: Final answer
    x = 108,059.14

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1.5x scale

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.