Home / 123,520.32-170,478.36-93,258.30

Finding the Fourth Proportional to 123,520.32, 170,478.36 and 93,258.30

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Solution

The fourth proportional to 123,520.32, 170,478.36 and 93,258.30 is: 128,711.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,520.32 : 170,478.36 = 93,258.30 : x
  2. Step 2: Convert to fraction form
    123,520.32/170,478.36 = 93,258.30/x
  3. Step 3: Cross multiply
    123,520.32x = 170,478.36 × 93,258.30
  4. Step 4: Simplify right side
    123,520.32x = 15,898,522,040.39
  5. Step 5: Solve for x
    x = 15,898,522,040.39/123,520.32
  6. Step 6: Final answer
    x = 128,711.79

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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.