Home / 137,584.80-189,853.76-77,157.92

Finding the Fourth Proportional to 137,584.80, 189,853.76 and 77,157.92

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Solution

The fourth proportional to 137,584.80, 189,853.76 and 77,157.92 is: 106,470.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,584.80 : 189,853.76 = 77,157.92 : x
  2. Step 2: Convert to fraction form
    137,584.80/189,853.76 = 77,157.92/x
  3. Step 3: Cross multiply
    137,584.80x = 189,853.76 × 77,157.92
  4. Step 4: Simplify right side
    137,584.80x = 14,648,721,225.78
  5. Step 5: Solve for x
    x = 14,648,721,225.78/137,584.80
  6. Step 6: Final answer
    x = 106,470.49

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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.