Home / 156,979.71-216,650.16-93,316.95

Finding the Fourth Proportional to 156,979.71, 216,650.16 and 93,316.95

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Solution

The fourth proportional to 156,979.71, 216,650.16 and 93,316.95 is: 128,788.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,979.71 : 216,650.16 = 93,316.95 : x
  2. Step 2: Convert to fraction form
    156,979.71/216,650.16 = 93,316.95/x
  3. Step 3: Cross multiply
    156,979.71x = 216,650.16 × 93,316.95
  4. Step 4: Simplify right side
    156,979.71x = 20,217,132,148.21
  5. Step 5: Solve for x
    x = 20,217,132,148.21/156,979.71
  6. Step 6: Final answer
    x = 128,788.19

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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.