Home / 100,246.48-138,340.08-54,927.36

Finding the Fourth Proportional to 100,246.48, 138,340.08 and 54,927.36

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Solution

The fourth proportional to 100,246.48, 138,340.08 and 54,927.36 is: 75,799.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,246.48 : 138,340.08 = 54,927.36 : x
  2. Step 2: Convert to fraction form
    100,246.48/138,340.08 = 54,927.36/x
  3. Step 3: Cross multiply
    100,246.48x = 138,340.08 × 54,927.36
  4. Step 4: Simplify right side
    100,246.48x = 7,598,655,376.59
  5. Step 5: Solve for x
    x = 7,598,655,376.59/100,246.48
  6. Step 6: Final answer
    x = 75,799.72

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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.