Home / 116,087.57-160,132.80-72,998.71

Finding the Fourth Proportional to 116,087.57, 160,132.80 and 72,998.71

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Solution

The fourth proportional to 116,087.57, 160,132.80 and 72,998.71 is: 100,695.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,087.57 : 160,132.80 = 72,998.71 : x
  2. Step 2: Convert to fraction form
    116,087.57/160,132.80 = 72,998.71/x
  3. Step 3: Cross multiply
    116,087.57x = 160,132.80 × 72,998.71
  4. Step 4: Simplify right side
    116,087.57x = 11,689,488,602.85
  5. Step 5: Solve for x
    x = 11,689,488,602.85/116,087.57
  6. Step 6: Final answer
    x = 100,695.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.