Home / 156,724.70-216,280.08-89,656.70

Finding the Fourth Proportional to 156,724.70, 216,280.08 and 89,656.70

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Solution

The fourth proportional to 156,724.70, 216,280.08 and 89,656.70 is: 123,726.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,724.70 : 216,280.08 = 89,656.70 : x
  2. Step 2: Convert to fraction form
    156,724.70/216,280.08 = 89,656.70/x
  3. Step 3: Cross multiply
    156,724.70x = 216,280.08 × 89,656.70
  4. Step 4: Simplify right side
    156,724.70x = 19,390,957,167.14
  5. Step 5: Solve for x
    x = 19,390,957,167.14/156,724.70
  6. Step 6: Final answer
    x = 123,726.24

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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.