Home / 150,423.28-207,539.62-85,890.38

Finding the Fourth Proportional to 150,423.28, 207,539.62 and 85,890.38

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Solution

The fourth proportional to 150,423.28, 207,539.62 and 85,890.38 is: 118,503.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,423.28 : 207,539.62 = 85,890.38 : x
  2. Step 2: Convert to fraction form
    150,423.28/207,539.62 = 85,890.38/x
  3. Step 3: Cross multiply
    150,423.28x = 207,539.62 × 85,890.38
  4. Step 4: Simplify right side
    150,423.28x = 17,825,655,574.43
  5. Step 5: Solve for x
    x = 17,825,655,574.43/150,423.28
  6. Step 6: Final answer
    x = 118,503.31

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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.