Home / 89,552.70-134,329.05-85,616.10

Finding the Fourth Proportional to 89,552.70, 134,329.05 and 85,616.10

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Solution

The fourth proportional to 89,552.70, 134,329.05 and 85,616.10 is: 128,424.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,552.70 : 134,329.05 = 85,616.10 : x
  2. Step 2: Convert to fraction form
    89,552.70/134,329.05 = 85,616.10/x
  3. Step 3: Cross multiply
    89,552.70x = 134,329.05 × 85,616.10
  4. Step 4: Simplify right side
    89,552.70x = 11,500,729,377.71
  5. Step 5: Solve for x
    x = 11,500,729,377.71/89,552.70
  6. Step 6: Final answer
    x = 128,424.15

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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.