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Finding the Fourth Proportional to 156,594.68, 216,063.18 and 89,509.88

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Solution

The fourth proportional to 156,594.68, 216,063.18 and 89,509.88 is: 123,502.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,594.68 : 216,063.18 = 89,509.88 : x
  2. Step 2: Convert to fraction form
    156,594.68/216,063.18 = 89,509.88/x
  3. Step 3: Cross multiply
    156,594.68x = 216,063.18 × 89,509.88
  4. Step 4: Simplify right side
    156,594.68x = 19,339,789,314.22
  5. Step 5: Solve for x
    x = 19,339,789,314.22/156,594.68
  6. Step 6: Final answer
    x = 123,502.21

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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.