Home / 156,711.75-216,262.22-89,643.75

Finding the Fourth Proportional to 156,711.75, 216,262.22 and 89,643.75

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Solution

The fourth proportional to 156,711.75, 216,262.22 and 89,643.75 is: 123,708.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,711.75 : 216,262.22 = 89,643.75 : x
  2. Step 2: Convert to fraction form
    156,711.75/216,262.22 = 89,643.75/x
  3. Step 3: Cross multiply
    156,711.75x = 216,262.22 × 89,643.75
  4. Step 4: Simplify right side
    156,711.75x = 19,386,555,935.91
  5. Step 5: Solve for x
    x = 19,386,555,935.91/156,711.75
  6. Step 6: Final answer
    x = 123,708.38

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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.