Home / 132,108.47-182,229.04-78,357.48

Finding the Fourth Proportional to 132,108.47, 182,229.04 and 78,357.48

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Solution

The fourth proportional to 132,108.47, 182,229.04 and 78,357.48 is: 108,085.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,108.47 : 182,229.04 = 78,357.48 : x
  2. Step 2: Convert to fraction form
    132,108.47/182,229.04 = 78,357.48/x
  3. Step 3: Cross multiply
    132,108.47x = 182,229.04 × 78,357.48
  4. Step 4: Simplify right side
    132,108.47x = 14,279,007,771.81
  5. Step 5: Solve for x
    x = 14,279,007,771.81/132,108.47
  6. Step 6: Final answer
    x = 108,085.48

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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.