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Finding the Fourth Proportional to 121,320.70, 181,948.65 and 37,080.70

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Solution

The fourth proportional to 121,320.70, 181,948.65 and 37,080.70 is: 55,611.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,320.70 : 181,948.65 = 37,080.70 : x
  2. Step 2: Convert to fraction form
    121,320.70/181,948.65 = 37,080.70/x
  3. Step 3: Cross multiply
    121,320.70x = 181,948.65 × 37,080.70
  4. Step 4: Simplify right side
    121,320.70x = 6,746,783,306.06
  5. Step 5: Solve for x
    x = 6,746,783,306.06/121,320.70
  6. Step 6: Final answer
    x = 55,611.15

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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.