Home / 132,040.88-182,239.70-78,355.50

Finding the Fourth Proportional to 132,040.88, 182,239.70 and 78,355.50

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Solution

The fourth proportional to 132,040.88, 182,239.70 and 78,355.50 is: 108,144.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,040.88 : 182,239.70 = 78,355.50 : x
  2. Step 2: Convert to fraction form
    132,040.88/182,239.70 = 78,355.50/x
  3. Step 3: Cross multiply
    132,040.88x = 182,239.70 × 78,355.50
  4. Step 4: Simplify right side
    132,040.88x = 14,279,482,813.35
  5. Step 5: Solve for x
    x = 14,279,482,813.35/132,040.88
  6. Step 6: Final answer
    x = 108,144.41

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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.