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Finding the Fourth Proportional to 155,244.84, 232,868.76 and 85,085.88

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Solution

The fourth proportional to 155,244.84, 232,868.76 and 85,085.88 is: 127,629.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,244.84 : 232,868.76 = 85,085.88 : x
  2. Step 2: Convert to fraction form
    155,244.84/232,868.76 = 85,085.88/x
  3. Step 3: Cross multiply
    155,244.84x = 232,868.76 × 85,085.88
  4. Step 4: Simplify right side
    155,244.84x = 19,813,843,369.11
  5. Step 5: Solve for x
    x = 19,813,843,369.11/155,244.84
  6. Step 6: Final answer
    x = 127,629.64

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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.