Home / 123,997.47-171,118.49-70,281.36

Finding the Fourth Proportional to 123,997.47, 171,118.49 and 70,281.36

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Solution

The fourth proportional to 123,997.47, 171,118.49 and 70,281.36 is: 96,989.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,997.47 : 171,118.49 = 70,281.36 : x
  2. Step 2: Convert to fraction form
    123,997.47/171,118.49 = 70,281.36/x
  3. Step 3: Cross multiply
    123,997.47x = 171,118.49 × 70,281.36
  4. Step 4: Simplify right side
    123,997.47x = 12,026,440,198.35
  5. Step 5: Solve for x
    x = 12,026,440,198.35/123,997.47
  6. Step 6: Final answer
    x = 96,989.40

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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.