Home / 132,040.32-182,238.93-78,354.93

Finding the Fourth Proportional to 132,040.32, 182,238.93 and 78,354.93

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Solution

The fourth proportional to 132,040.32, 182,238.93 and 78,354.93 is: 108,143.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,040.32 : 182,238.93 = 78,354.93 : x
  2. Step 2: Convert to fraction form
    132,040.32/182,238.93 = 78,354.93/x
  3. Step 3: Cross multiply
    132,040.32x = 182,238.93 × 78,354.93
  4. Step 4: Simplify right side
    132,040.32x = 14,279,319,059.02
  5. Step 5: Solve for x
    x = 14,279,319,059.02/132,040.32
  6. Step 6: Final answer
    x = 108,143.63

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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.