Home / 185,780.80-256,376.07-100,897.87

Finding the Fourth Proportional to 185,780.80, 256,376.07 and 100,897.87

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Solution

The fourth proportional to 185,780.80, 256,376.07 and 100,897.87 is: 139,238.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,780.80 : 256,376.07 = 100,897.87 : x
  2. Step 2: Convert to fraction form
    185,780.80/256,376.07 = 100,897.87/x
  3. Step 3: Cross multiply
    185,780.80x = 256,376.07 × 100,897.87
  4. Step 4: Simplify right side
    185,780.80x = 25,867,799,381.97
  5. Step 5: Solve for x
    x = 25,867,799,381.97/185,780.80
  6. Step 6: Final answer
    x = 139,238.28

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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.