Home / 185,154.80-255,510.60-100,271.12

Finding the Fourth Proportional to 185,154.80, 255,510.60 and 100,271.12

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Solution

The fourth proportional to 185,154.80, 255,510.60 and 100,271.12 is: 138,372.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,154.80 : 255,510.60 = 100,271.12 : x
  2. Step 2: Convert to fraction form
    185,154.80/255,510.60 = 100,271.12/x
  3. Step 3: Cross multiply
    185,154.80x = 255,510.60 × 100,271.12
  4. Step 4: Simplify right side
    185,154.80x = 25,620,334,033.87
  5. Step 5: Solve for x
    x = 25,620,334,033.87/185,154.80
  6. Step 6: Final answer
    x = 138,372.51

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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.