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Finding the Fourth Proportional to 136,378.53, 204,595.74 and 57,492.90

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Solution

The fourth proportional to 136,378.53, 204,595.74 and 57,492.90 is: 86,251.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,378.53 : 204,595.74 = 57,492.90 : x
  2. Step 2: Convert to fraction form
    136,378.53/204,595.74 = 57,492.90/x
  3. Step 3: Cross multiply
    136,378.53x = 204,595.74 × 57,492.90
  4. Step 4: Simplify right side
    136,378.53x = 11,762,802,420.25
  5. Step 5: Solve for x
    x = 11,762,802,420.25/136,378.53
  6. Step 6: Final answer
    x = 86,251.13

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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.