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Finding the Fourth Proportional to 150,330.62, 207,473.72 and 86,670.69

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Solution

The fourth proportional to 150,330.62, 207,473.72 and 86,670.69 is: 119,615.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,330.62 : 207,473.72 = 86,670.69 : x
  2. Step 2: Convert to fraction form
    150,330.62/207,473.72 = 86,670.69/x
  3. Step 3: Cross multiply
    150,330.62x = 207,473.72 × 86,670.69
  4. Step 4: Simplify right side
    150,330.62x = 17,981,890,035.91
  5. Step 5: Solve for x
    x = 17,981,890,035.91/150,330.62
  6. Step 6: Final answer
    x = 119,615.62

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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.