Home / 156,633.49-216,102.76-88,643.71

Finding the Fourth Proportional to 156,633.49, 216,102.76 and 88,643.71

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Solution

The fourth proportional to 156,633.49, 216,102.76 and 88,643.71 is: 122,299.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,633.49 : 216,102.76 = 88,643.71 : x
  2. Step 2: Convert to fraction form
    156,633.49/216,102.76 = 88,643.71/x
  3. Step 3: Cross multiply
    156,633.49x = 216,102.76 × 88,643.71
  4. Step 4: Simplify right side
    156,633.49x = 19,156,150,387.64
  5. Step 5: Solve for x
    x = 19,156,150,387.64/156,633.49
  6. Step 6: Final answer
    x = 122,299.20

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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.