Home / 156,724.75-216,280.16-89,656.75

Finding the Fourth Proportional to 156,724.75, 216,280.16 and 89,656.75

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Solution

The fourth proportional to 156,724.75, 216,280.16 and 89,656.75 is: 123,726.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,724.75 : 216,280.16 = 89,656.75 : x
  2. Step 2: Convert to fraction form
    156,724.75/216,280.16 = 89,656.75/x
  3. Step 3: Cross multiply
    156,724.75x = 216,280.16 × 89,656.75
  4. Step 4: Simplify right side
    156,724.75x = 19,390,976,235.08
  5. Step 5: Solve for x
    x = 19,390,976,235.08/156,724.75
  6. Step 6: Final answer
    x = 123,726.32

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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.