Home / 154,120.81-211,869.98-132,531.47

Finding the Fourth Proportional to 154,120.81, 211,869.98 and 132,531.47

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Solution

The fourth proportional to 154,120.81, 211,869.98 and 132,531.47 is: 182,191.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,120.81 : 211,869.98 = 132,531.47 : x
  2. Step 2: Convert to fraction form
    154,120.81/211,869.98 = 132,531.47/x
  3. Step 3: Cross multiply
    154,120.81x = 211,869.98 × 132,531.47
  4. Step 4: Simplify right side
    154,120.81x = 28,079,439,765.29
  5. Step 5: Solve for x
    x = 28,079,439,765.29/154,120.81
  6. Step 6: Final answer
    x = 182,191.10

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.