Home / 185,173.40-255,538.02-100,288.76

Finding the Fourth Proportional to 185,173.40, 255,538.02 and 100,288.76

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Solution

The fourth proportional to 185,173.40, 255,538.02 and 100,288.76 is: 138,397.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,173.40 : 255,538.02 = 100,288.76 : x
  2. Step 2: Convert to fraction form
    185,173.40/255,538.02 = 100,288.76/x
  3. Step 3: Cross multiply
    185,173.40x = 255,538.02 × 100,288.76
  4. Step 4: Simplify right side
    185,173.40x = 25,627,591,158.66
  5. Step 5: Solve for x
    x = 25,627,591,158.66/185,173.40
  6. Step 6: Final answer
    x = 138,397.80

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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.