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Finding the Fourth Proportional to 150,049.92, 207,071.04 and 86,386.56

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Solution

The fourth proportional to 150,049.92, 207,071.04 and 86,386.56 is: 119,214.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,049.92 : 207,071.04 = 86,386.56 : x
  2. Step 2: Convert to fraction form
    150,049.92/207,071.04 = 86,386.56/x
  3. Step 3: Cross multiply
    150,049.92x = 207,071.04 × 86,386.56
  4. Step 4: Simplify right side
    150,049.92x = 17,888,154,821.22
  5. Step 5: Solve for x
    x = 17,888,154,821.22/150,049.92
  6. Step 6: Final answer
    x = 119,214.69

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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.