Home / 145,197.39-217,851.94-70,311.78

Finding the Fourth Proportional to 145,197.39, 217,851.94 and 70,311.78

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Solution

The fourth proportional to 145,197.39, 217,851.94 and 70,311.78 is: 105,494.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,197.39 : 217,851.94 = 70,311.78 : x
  2. Step 2: Convert to fraction form
    145,197.39/217,851.94 = 70,311.78/x
  3. Step 3: Cross multiply
    145,197.39x = 217,851.94 × 70,311.78
  4. Step 4: Simplify right side
    145,197.39x = 15,317,557,765.74
  5. Step 5: Solve for x
    x = 15,317,557,765.74/145,197.39
  6. Step 6: Final answer
    x = 105,494.72

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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.