Home / 123,724.78-170,740.20-70,008.70

Finding the Fourth Proportional to 123,724.78, 170,740.20 and 70,008.70

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Solution

The fourth proportional to 123,724.78, 170,740.20 and 70,008.70 is: 96,612.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,724.78 : 170,740.20 = 70,008.70 : x
  2. Step 2: Convert to fraction form
    123,724.78/170,740.20 = 70,008.70/x
  3. Step 3: Cross multiply
    123,724.78x = 170,740.20 × 70,008.70
  4. Step 4: Simplify right side
    123,724.78x = 11,953,299,439.74
  5. Step 5: Solve for x
    x = 11,953,299,439.74/123,724.78
  6. Step 6: Final answer
    x = 96,612.01

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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.