Home / 96,143.91-132,715.08-72,339.78

Finding the Fourth Proportional to 96,143.91, 132,715.08 and 72,339.78

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Solution

The fourth proportional to 96,143.91, 132,715.08 and 72,339.78 is: 99,856.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,143.91 : 132,715.08 = 72,339.78 : x
  2. Step 2: Convert to fraction form
    96,143.91/132,715.08 = 72,339.78/x
  3. Step 3: Cross multiply
    96,143.91x = 132,715.08 × 72,339.78
  4. Step 4: Simplify right side
    96,143.91x = 9,600,579,689.88
  5. Step 5: Solve for x
    x = 9,600,579,689.88/96,143.91
  6. Step 6: Final answer
    x = 99,856.35

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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.