Home / 132,444-182,811.60-78,767.04

Finding the Fourth Proportional to 132,444, 182,811.60 and 78,767.04

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Solution

The fourth proportional to 132,444, 182,811.60 and 78,767.04 is: 108,721.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,444 : 182,811.60 = 78,767.04 : x
  2. Step 2: Convert to fraction form
    132,444/182,811.60 = 78,767.04/x
  3. Step 3: Cross multiply
    132,444x = 182,811.60 × 78,767.04
  4. Step 4: Simplify right side
    132,444x = 14,399,528,609.66
  5. Step 5: Solve for x
    x = 14,399,528,609.66/132,444
  6. Step 6: Final answer
    x = 108,721.64

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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.