Home / 156,926.80-235,185.40-72,677.20

Finding the Fourth Proportional to 156,926.80, 235,185.40 and 72,677.20

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Solution

The fourth proportional to 156,926.80, 235,185.40 and 72,677.20 is: 108,920.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,926.80 : 235,185.40 = 72,677.20 : x
  2. Step 2: Convert to fraction form
    156,926.80/235,185.40 = 72,677.20/x
  3. Step 3: Cross multiply
    156,926.80x = 235,185.40 × 72,677.20
  4. Step 4: Simplify right side
    156,926.80x = 17,092,616,352.88
  5. Step 5: Solve for x
    x = 17,092,616,352.88/156,926.80
  6. Step 6: Final answer
    x = 108,920.95

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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.