Home / 185,168.40-255,531.12-100,283.76

Finding the Fourth Proportional to 185,168.40, 255,531.12 and 100,283.76

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Solution

The fourth proportional to 185,168.40, 255,531.12 and 100,283.76 is: 138,390.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,168.40 : 255,531.12 = 100,283.76 : x
  2. Step 2: Convert to fraction form
    185,168.40/255,531.12 = 100,283.76/x
  3. Step 3: Cross multiply
    185,168.40x = 255,531.12 × 100,283.76
  4. Step 4: Simplify right side
    185,168.40x = 25,625,621,510.61
  5. Step 5: Solve for x
    x = 25,625,621,510.61/185,168.40
  6. Step 6: Final answer
    x = 138,390.90

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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.