Home / 132,040.07-182,238.59-78,354.68

Finding the Fourth Proportional to 132,040.07, 182,238.59 and 78,354.68

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Solution

The fourth proportional to 132,040.07, 182,238.59 and 78,354.68 is: 108,143.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,040.07 : 182,238.59 = 78,354.68 : x
  2. Step 2: Convert to fraction form
    132,040.07/182,238.59 = 78,354.68/x
  3. Step 3: Cross multiply
    132,040.07x = 182,238.59 × 78,354.68
  4. Step 4: Simplify right side
    132,040.07x = 14,279,246,466.92
  5. Step 5: Solve for x
    x = 14,279,246,466.92/132,040.07
  6. Step 6: Final answer
    x = 108,143.29

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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.