Home / 185,152.80-255,510.96-100,270.24

Finding the Fourth Proportional to 185,152.80, 255,510.96 and 100,270.24

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Solution

The fourth proportional to 185,152.80, 255,510.96 and 100,270.24 is: 138,372.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,152.80 : 255,510.96 = 100,270.24 : x
  2. Step 2: Convert to fraction form
    185,152.80/255,510.96 = 100,270.24/x
  3. Step 3: Cross multiply
    185,152.80x = 255,510.96 × 100,270.24
  4. Step 4: Simplify right side
    185,152.80x = 25,620,145,281.83
  5. Step 5: Solve for x
    x = 25,620,145,281.83/185,152.80
  6. Step 6: Final answer
    x = 138,372.98

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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.