Home / 123,996.47-171,117.11-70,280.36

Finding the Fourth Proportional to 123,996.47, 171,117.11 and 70,280.36

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Solution

The fourth proportional to 123,996.47, 171,117.11 and 70,280.36 is: 96,988.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,996.47 : 171,117.11 = 70,280.36 : x
  2. Step 2: Convert to fraction form
    123,996.47/171,117.11 = 70,280.36/x
  3. Step 3: Cross multiply
    123,996.47x = 171,117.11 × 70,280.36
  4. Step 4: Simplify right side
    123,996.47x = 12,026,171,659.44
  5. Step 5: Solve for x
    x = 12,026,171,659.44/123,996.47
  6. Step 6: Final answer
    x = 96,988.02

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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.