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Finding the Fourth Proportional to 156,720.96, 216,274.91 and 89,652.96

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Solution

The fourth proportional to 156,720.96, 216,274.91 and 89,652.96 is: 123,721.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,720.96 : 216,274.91 = 89,652.96 : x
  2. Step 2: Convert to fraction form
    156,720.96/216,274.91 = 89,652.96/x
  3. Step 3: Cross multiply
    156,720.96x = 216,274.91 × 89,652.96
  4. Step 4: Simplify right side
    156,720.96x = 19,389,685,406.97
  5. Step 5: Solve for x
    x = 19,389,685,406.97/156,720.96
  6. Step 6: Final answer
    x = 123,721.07

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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.