Home / 120,030.60-179,876.88-91,841.52

Finding the Fourth Proportional to 120,030.60, 179,876.88 and 91,841.52

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Solution

The fourth proportional to 120,030.60, 179,876.88 and 91,841.52 is: 137,632.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,030.60 : 179,876.88 = 91,841.52 : x
  2. Step 2: Convert to fraction form
    120,030.60/179,876.88 = 91,841.52/x
  3. Step 3: Cross multiply
    120,030.60x = 179,876.88 × 91,841.52
  4. Step 4: Simplify right side
    120,030.60x = 16,520,166,072.06
  5. Step 5: Solve for x
    x = 16,520,166,072.06/120,030.60
  6. Step 6: Final answer
    x = 137,632.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.