Home / 185,172.30-255,534.75-100,288.62

Finding the Fourth Proportional to 185,172.30, 255,534.75 and 100,288.62

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Solution

The fourth proportional to 185,172.30, 255,534.75 and 100,288.62 is: 138,396.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,172.30 : 255,534.75 = 100,288.62 : x
  2. Step 2: Convert to fraction form
    185,172.30/255,534.75 = 100,288.62/x
  3. Step 3: Cross multiply
    185,172.30x = 255,534.75 × 100,288.62
  4. Step 4: Simplify right side
    185,172.30x = 25,627,227,439.55
  5. Step 5: Solve for x
    x = 25,627,227,439.55/185,172.30
  6. Step 6: Final answer
    x = 138,396.66

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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.