Home / 150,047.20-207,084.74-86,387.68

Finding the Fourth Proportional to 150,047.20, 207,084.74 and 86,387.68

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Solution

The fourth proportional to 150,047.20, 207,084.74 and 86,387.68 is: 119,226.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,047.20 : 207,084.74 = 86,387.68 : x
  2. Step 2: Convert to fraction form
    150,047.20/207,084.74 = 86,387.68/x
  3. Step 3: Cross multiply
    150,047.20x = 207,084.74 × 86,387.68
  4. Step 4: Simplify right side
    150,047.20x = 17,889,570,252.00
  5. Step 5: Solve for x
    x = 17,889,570,252.00/150,047.20
  6. Step 6: Final answer
    x = 119,226.29

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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.