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Finding the Fourth Proportional to 145,492.32, 218,291.78 and 61,273.68

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Solution

The fourth proportional to 145,492.32, 218,291.78 and 61,273.68 is: 91,932.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,492.32 : 218,291.78 = 61,273.68 : x
  2. Step 2: Convert to fraction form
    145,492.32/218,291.78 = 61,273.68/x
  3. Step 3: Cross multiply
    145,492.32x = 218,291.78 × 61,273.68
  4. Step 4: Simplify right side
    145,492.32x = 13,375,540,827.53
  5. Step 5: Solve for x
    x = 13,375,540,827.53/145,492.32
  6. Step 6: Final answer
    x = 91,932.97

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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.