Home / 132,041.39-182,240.40-78,356.00

Finding the Fourth Proportional to 132,041.39, 182,240.40 and 78,356.00

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Solution

The fourth proportional to 132,041.39, 182,240.40 and 78,356.00 is: 108,145.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,041.39 : 182,240.40 = 78,356.00 : x
  2. Step 2: Convert to fraction form
    132,041.39/182,240.40 = 78,356.00/x
  3. Step 3: Cross multiply
    132,041.39x = 182,240.40 × 78,356.00
  4. Step 4: Simplify right side
    132,041.39x = 14,279,627,871.20
  5. Step 5: Solve for x
    x = 14,279,627,871.20/132,041.39
  6. Step 6: Final answer
    x = 108,145.09

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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.