Home / 150,725.23-207,995.42-85,312.64

Finding the Fourth Proportional to 150,725.23, 207,995.42 and 85,312.64

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Solution

The fourth proportional to 150,725.23, 207,995.42 and 85,312.64 is: 117,728.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,725.23 : 207,995.42 = 85,312.64 : x
  2. Step 2: Convert to fraction form
    150,725.23/207,995.42 = 85,312.64/x
  3. Step 3: Cross multiply
    150,725.23x = 207,995.42 × 85,312.64
  4. Step 4: Simplify right side
    150,725.23x = 17,744,639,121.38
  5. Step 5: Solve for x
    x = 17,744,639,121.38/150,725.23
  6. Step 6: Final answer
    x = 117,728.40

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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.