Home / 107,387.63-148,190.13-64,390.85

Finding the Fourth Proportional to 107,387.63, 148,190.13 and 64,390.85

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Solution

The fourth proportional to 107,387.63, 148,190.13 and 64,390.85 is: 88,856.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,387.63 : 148,190.13 = 64,390.85 : x
  2. Step 2: Convert to fraction form
    107,387.63/148,190.13 = 64,390.85/x
  3. Step 3: Cross multiply
    107,387.63x = 148,190.13 × 64,390.85
  4. Step 4: Simplify right side
    107,387.63x = 9,542,088,469.11
  5. Step 5: Solve for x
    x = 9,542,088,469.11/107,387.63
  6. Step 6: Final answer
    x = 88,856.50

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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.