Home / 156,720.20-216,273.87-89,652.20

Finding the Fourth Proportional to 156,720.20, 216,273.87 and 89,652.20

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Solution

The fourth proportional to 156,720.20, 216,273.87 and 89,652.20 is: 123,720.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,720.20 : 216,273.87 = 89,652.20 : x
  2. Step 2: Convert to fraction form
    156,720.20/216,273.87 = 89,652.20/x
  3. Step 3: Cross multiply
    156,720.20x = 216,273.87 × 89,652.20
  4. Step 4: Simplify right side
    156,720.20x = 19,389,427,166.64
  5. Step 5: Solve for x
    x = 19,389,427,166.64/156,720.20
  6. Step 6: Final answer
    x = 123,720.03

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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.