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Finding the Fourth Proportional to 120,085.62, 180,148.01 and 36,979.62

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Solution

The fourth proportional to 120,085.62, 180,148.01 and 36,979.62 is: 55,475.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,085.62 : 180,148.01 = 36,979.62 : x
  2. Step 2: Convert to fraction form
    120,085.62/180,148.01 = 36,979.62/x
  3. Step 3: Cross multiply
    120,085.62x = 180,148.01 × 36,979.62
  4. Step 4: Simplify right side
    120,085.62x = 6,661,804,768.66
  5. Step 5: Solve for x
    x = 6,661,804,768.66/120,085.62
  6. Step 6: Final answer
    x = 55,475.46

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1.5x scale

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.