Home / 156,934.03-235,459.37-72,734.53

Finding the Fourth Proportional to 156,934.03, 235,459.37 and 72,734.53

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Solution

The fourth proportional to 156,934.03, 235,459.37 and 72,734.53 is: 109,128.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,934.03 : 235,459.37 = 72,734.53 : x
  2. Step 2: Convert to fraction form
    156,934.03/235,459.37 = 72,734.53/x
  3. Step 3: Cross multiply
    156,934.03x = 235,459.37 × 72,734.53
  4. Step 4: Simplify right side
    156,934.03x = 17,126,026,611.05
  5. Step 5: Solve for x
    x = 17,126,026,611.05/156,934.03
  6. Step 6: Final answer
    x = 109,128.83

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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.