Home / 100,246.02-138,339.50-54,925.72

Finding the Fourth Proportional to 100,246.02, 138,339.50 and 54,925.72

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Solution

The fourth proportional to 100,246.02, 138,339.50 and 54,925.72 is: 75,797.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,246.02 : 138,339.50 = 54,925.72 : x
  2. Step 2: Convert to fraction form
    100,246.02/138,339.50 = 54,925.72/x
  3. Step 3: Cross multiply
    100,246.02x = 138,339.50 × 54,925.72
  4. Step 4: Simplify right side
    100,246.02x = 7,598,396,641.94
  5. Step 5: Solve for x
    x = 7,598,396,641.94/100,246.02
  6. Step 6: Final answer
    x = 75,797.49

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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.