Home / 202,124.40-279,045.72-140,146.80

Finding the Fourth Proportional to 202,124.40, 279,045.72 and 140,146.80

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Solution

The fourth proportional to 202,124.40, 279,045.72 and 140,146.80 is: 193,481.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,124.40 : 279,045.72 = 140,146.80 : x
  2. Step 2: Convert to fraction form
    202,124.40/279,045.72 = 140,146.80/x
  3. Step 3: Cross multiply
    202,124.40x = 279,045.72 × 140,146.80
  4. Step 4: Simplify right side
    202,124.40x = 39,107,364,711.70
  5. Step 5: Solve for x
    x = 39,107,364,711.70/202,124.40
  6. Step 6: Final answer
    x = 193,481.66

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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.