Home / 138,760.06-191,490.30-75,099.23

Finding the Fourth Proportional to 138,760.06, 191,490.30 and 75,099.23

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Solution

The fourth proportional to 138,760.06, 191,490.30 and 75,099.23 is: 103,637.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,760.06 : 191,490.30 = 75,099.23 : x
  2. Step 2: Convert to fraction form
    138,760.06/191,490.30 = 75,099.23/x
  3. Step 3: Cross multiply
    138,760.06x = 191,490.30 × 75,099.23
  4. Step 4: Simplify right side
    138,760.06x = 14,380,774,082.47
  5. Step 5: Solve for x
    x = 14,380,774,082.47/138,760.06
  6. Step 6: Final answer
    x = 103,637.70

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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.