Home / 215,836.93-297,877.13-129,823.57

Finding the Fourth Proportional to 215,836.93, 297,877.13 and 129,823.57

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Solution

The fourth proportional to 215,836.93, 297,877.13 and 129,823.57 is: 179,169.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,836.93 : 297,877.13 = 129,823.57 : x
  2. Step 2: Convert to fraction form
    215,836.93/297,877.13 = 129,823.57/x
  3. Step 3: Cross multiply
    215,836.93x = 297,877.13 × 129,823.57
  4. Step 4: Simplify right side
    215,836.93x = 38,671,472,437.95
  5. Step 5: Solve for x
    x = 38,671,472,437.95/215,836.93
  6. Step 6: Final answer
    x = 179,169.86

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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.