Home / 138,687.41-191,387.98-75,024.65

Finding the Fourth Proportional to 138,687.41, 191,387.98 and 75,024.65

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Solution

The fourth proportional to 138,687.41, 191,387.98 and 75,024.65 is: 103,533.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,687.41 : 191,387.98 = 75,024.65 : x
  2. Step 2: Convert to fraction form
    138,687.41/191,387.98 = 75,024.65/x
  3. Step 3: Cross multiply
    138,687.41x = 191,387.98 × 75,024.65
  4. Step 4: Simplify right side
    138,687.41x = 14,358,816,785.96
  5. Step 5: Solve for x
    x = 14,358,816,785.96/138,687.41
  6. Step 6: Final answer
    x = 103,533.67

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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.