Home / 107,125.20-147,783.08-75,312.86

Finding the Fourth Proportional to 107,125.20, 147,783.08 and 75,312.86

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Solution

The fourth proportional to 107,125.20, 147,783.08 and 75,312.86 is: 103,896.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,125.20 : 147,783.08 = 75,312.86 : x
  2. Step 2: Convert to fraction form
    107,125.20/147,783.08 = 75,312.86/x
  3. Step 3: Cross multiply
    107,125.20x = 147,783.08 × 75,312.86
  4. Step 4: Simplify right side
    107,125.20x = 11,129,965,863.78
  5. Step 5: Solve for x
    x = 11,129,965,863.78/107,125.20
  6. Step 6: Final answer
    x = 103,896.80

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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.