Home / 99,432.12-137,216.91-54,110.46

Finding the Fourth Proportional to 99,432.12, 137,216.91 and 54,110.46

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Solution

The fourth proportional to 99,432.12, 137,216.91 and 54,110.46 is: 74,672.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,432.12 : 137,216.91 = 54,110.46 : x
  2. Step 2: Convert to fraction form
    99,432.12/137,216.91 = 54,110.46/x
  3. Step 3: Cross multiply
    99,432.12x = 137,216.91 × 54,110.46
  4. Step 4: Simplify right side
    99,432.12x = 7,424,870,119.88
  5. Step 5: Solve for x
    x = 7,424,870,119.88/99,432.12
  6. Step 6: Final answer
    x = 74,672.75

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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.