Home / 138,724.95-191,439.94-75,062.46

Finding the Fourth Proportional to 138,724.95, 191,439.94 and 75,062.46

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Solution

The fourth proportional to 138,724.95, 191,439.94 and 75,062.46 is: 103,585.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,724.95 : 191,439.94 = 75,062.46 : x
  2. Step 2: Convert to fraction form
    138,724.95/191,439.94 = 75,062.46/x
  3. Step 3: Cross multiply
    138,724.95x = 191,439.94 × 75,062.46
  4. Step 4: Simplify right side
    138,724.95x = 14,369,952,838.65
  5. Step 5: Solve for x
    x = 14,369,952,838.65/138,724.95
  6. Step 6: Final answer
    x = 103,585.93

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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.