Home / 156,548.20-234,951.90-72,437.80

Finding the Fourth Proportional to 156,548.20, 234,951.90 and 72,437.80

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Solution

The fourth proportional to 156,548.20, 234,951.90 and 72,437.80 is: 108,716.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,548.20 : 234,951.90 = 72,437.80 : x
  2. Step 2: Convert to fraction form
    156,548.20/234,951.90 = 72,437.80/x
  3. Step 3: Cross multiply
    156,548.20x = 234,951.90 × 72,437.80
  4. Step 4: Simplify right side
    156,548.20x = 17,019,398,741.82
  5. Step 5: Solve for x
    x = 17,019,398,741.82/156,548.20
  6. Step 6: Final answer
    x = 108,716.67

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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.