Home / 155,315.28-232,934.43-66,558.72

Finding the Fourth Proportional to 155,315.28, 232,934.43 and 66,558.72

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Solution

The fourth proportional to 155,315.28, 232,934.43 and 66,558.72 is: 99,821.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,315.28 : 232,934.43 = 66,558.72 : x
  2. Step 2: Convert to fraction form
    155,315.28/232,934.43 = 66,558.72/x
  3. Step 3: Cross multiply
    155,315.28x = 232,934.43 × 66,558.72
  4. Step 4: Simplify right side
    155,315.28x = 15,503,817,504.73
  5. Step 5: Solve for x
    x = 15,503,817,504.73/155,315.28
  6. Step 6: Final answer
    x = 99,821.59

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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.