Home / 123,998.47-171,119.87-70,282.36

Finding the Fourth Proportional to 123,998.47, 171,119.87 and 70,282.36

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Solution

The fourth proportional to 123,998.47, 171,119.87 and 70,282.36 is: 96,990.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,998.47 : 171,119.87 = 70,282.36 : x
  2. Step 2: Convert to fraction form
    123,998.47/171,119.87 = 70,282.36/x
  3. Step 3: Cross multiply
    123,998.47x = 171,119.87 × 70,282.36
  4. Step 4: Simplify right side
    123,998.47x = 12,026,708,306.49
  5. Step 5: Solve for x
    x = 12,026,708,306.49/123,998.47
  6. Step 6: Final answer
    x = 96,990.78

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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.