Home / 123,753.91-170,780.38-67,165.28

Finding the Fourth Proportional to 123,753.91, 170,780.38 and 67,165.28

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Solution

The fourth proportional to 123,753.91, 170,780.38 and 67,165.28 is: 92,688.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,753.91 : 170,780.38 = 67,165.28 : x
  2. Step 2: Convert to fraction form
    123,753.91/170,780.38 = 67,165.28/x
  3. Step 3: Cross multiply
    123,753.91x = 170,780.38 × 67,165.28
  4. Step 4: Simplify right side
    123,753.91x = 11,470,512,300.24
  5. Step 5: Solve for x
    x = 11,470,512,300.24/123,753.91
  6. Step 6: Final answer
    x = 92,688.08

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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.