Home / 89,158.68-133,736.67-21,691.35

Finding the Fourth Proportional to 89,158.68, 133,736.67 and 21,691.35

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Solution

The fourth proportional to 89,158.68, 133,736.67 and 21,691.35 is: 32,536.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,158.68 : 133,736.67 = 21,691.35 : x
  2. Step 2: Convert to fraction form
    89,158.68/133,736.67 = 21,691.35/x
  3. Step 3: Cross multiply
    89,158.68x = 133,736.67 × 21,691.35
  4. Step 4: Simplify right side
    89,158.68x = 2,900,928,916.80
  5. Step 5: Solve for x
    x = 2,900,928,916.80/89,158.68
  6. Step 6: Final answer
    x = 32,536.70

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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.