Home / 100,247.84-138,262.20-64,441.52

Finding the Fourth Proportional to 100,247.84, 138,262.20 and 64,441.52

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Solution

The fourth proportional to 100,247.84, 138,262.20 and 64,441.52 is: 88,877.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,247.84 : 138,262.20 = 64,441.52 : x
  2. Step 2: Convert to fraction form
    100,247.84/138,262.20 = 64,441.52/x
  3. Step 3: Cross multiply
    100,247.84x = 138,262.20 × 64,441.52
  4. Step 4: Simplify right side
    100,247.84x = 8,909,826,326.54
  5. Step 5: Solve for x
    x = 8,909,826,326.54/100,247.84
  6. Step 6: Final answer
    x = 88,877.99

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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.