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Finding the Fourth Proportional to 143,334.80, 215,002.20 and 36,718.55

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Solution

The fourth proportional to 143,334.80, 215,002.20 and 36,718.55 is: 55,077.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,334.80 : 215,002.20 = 36,718.55 : x
  2. Step 2: Convert to fraction form
    143,334.80/215,002.20 = 36,718.55/x
  3. Step 3: Cross multiply
    143,334.80x = 215,002.20 × 36,718.55
  4. Step 4: Simplify right side
    143,334.80x = 7,894,569,030.81
  5. Step 5: Solve for x
    x = 7,894,569,030.81/143,334.80
  6. Step 6: Final answer
    x = 55,077.83

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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.