Home / 121,901.85-182,787.02-55,305.63

Finding the Fourth Proportional to 121,901.85, 182,787.02 and 55,305.63

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Solution

The fourth proportional to 121,901.85, 182,787.02 and 55,305.63 is: 82,928.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,901.85 : 182,787.02 = 55,305.63 : x
  2. Step 2: Convert to fraction form
    121,901.85/182,787.02 = 55,305.63/x
  3. Step 3: Cross multiply
    121,901.85x = 182,787.02 × 55,305.63
  4. Step 4: Simplify right side
    121,901.85x = 10,109,151,020.39
  5. Step 5: Solve for x
    x = 10,109,151,020.39/121,901.85
  6. Step 6: Final answer
    x = 82,928.61

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1.5x scale

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.