Home / 155,445.60-214,515.24-91,787.46

Finding the Fourth Proportional to 155,445.60, 214,515.24 and 91,787.46

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Solution

The fourth proportional to 155,445.60, 214,515.24 and 91,787.46 is: 126,666.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,445.60 : 214,515.24 = 91,787.46 : x
  2. Step 2: Convert to fraction form
    155,445.60/214,515.24 = 91,787.46/x
  3. Step 3: Cross multiply
    155,445.60x = 214,515.24 × 91,787.46
  4. Step 4: Simplify right side
    155,445.60x = 19,689,809,010.89
  5. Step 5: Solve for x
    x = 19,689,809,010.89/155,445.60
  6. Step 6: Final answer
    x = 126,666.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.