Home / 185,039.52-255,355.20-100,156.48

Finding the Fourth Proportional to 185,039.52, 255,355.20 and 100,156.48

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Solution

The fourth proportional to 185,039.52, 255,355.20 and 100,156.48 is: 138,216.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,039.52 : 255,355.20 = 100,156.48 : x
  2. Step 2: Convert to fraction form
    185,039.52/255,355.20 = 100,156.48/x
  3. Step 3: Cross multiply
    185,039.52x = 255,355.20 × 100,156.48
  4. Step 4: Simplify right side
    185,039.52x = 25,575,477,981.70
  5. Step 5: Solve for x
    x = 25,575,477,981.70/185,039.52
  6. Step 6: Final answer
    x = 138,216.30

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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.