Home / 185,164.80-255,524.40-100,281.12

Finding the Fourth Proportional to 185,164.80, 255,524.40 and 100,281.12

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Solution

The fourth proportional to 185,164.80, 255,524.40 and 100,281.12 is: 138,386.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,164.80 : 255,524.40 = 100,281.12 : x
  2. Step 2: Convert to fraction form
    185,164.80/255,524.40 = 100,281.12/x
  3. Step 3: Cross multiply
    185,164.80x = 255,524.40 × 100,281.12
  4. Step 4: Simplify right side
    185,164.80x = 25,624,273,019.33
  5. Step 5: Solve for x
    x = 25,624,273,019.33/185,164.80
  6. Step 6: Final answer
    x = 138,386.31

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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.