Home / 180,724.17-270,718.11-85,666.23

Finding the Fourth Proportional to 180,724.17, 270,718.11 and 85,666.23

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Solution

The fourth proportional to 180,724.17, 270,718.11 and 85,666.23 is: 128,324.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,724.17 : 270,718.11 = 85,666.23 : x
  2. Step 2: Convert to fraction form
    180,724.17/270,718.11 = 85,666.23/x
  3. Step 3: Cross multiply
    180,724.17x = 270,718.11 × 85,666.23
  4. Step 4: Simplify right side
    180,724.17x = 23,191,399,876.43
  5. Step 5: Solve for x
    x = 23,191,399,876.43/180,724.17
  6. Step 6: Final answer
    x = 128,324.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.