Home / 155,228.85-232,648.56-66,378.06

Finding the Fourth Proportional to 155,228.85, 232,648.56 and 66,378.06

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Solution

The fourth proportional to 155,228.85, 232,648.56 and 66,378.06 is: 99,483.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,228.85 : 232,648.56 = 66,378.06 : x
  2. Step 2: Convert to fraction form
    155,228.85/232,648.56 = 66,378.06/x
  3. Step 3: Cross multiply
    155,228.85x = 232,648.56 × 66,378.06
  4. Step 4: Simplify right side
    155,228.85x = 15,442,760,074.59
  5. Step 5: Solve for x
    x = 15,442,760,074.59/155,228.85
  6. Step 6: Final answer
    x = 99,483.83

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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.