Home / 185,103.16-255,442.38-100,220.20

Finding the Fourth Proportional to 185,103.16, 255,442.38 and 100,220.20

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Solution

The fourth proportional to 185,103.16, 255,442.38 and 100,220.20 is: 138,303.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,103.16 : 255,442.38 = 100,220.20 : x
  2. Step 2: Convert to fraction form
    185,103.16/255,442.38 = 100,220.20/x
  3. Step 3: Cross multiply
    185,103.16x = 255,442.38 × 100,220.20
  4. Step 4: Simplify right side
    185,103.16x = 25,600,486,412.08
  5. Step 5: Solve for x
    x = 25,600,486,412.08/185,103.16
  6. Step 6: Final answer
    x = 138,303.89

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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.