Home / 107,938.24-148,965.48-80,666.96

Finding the Fourth Proportional to 107,938.24, 148,965.48 and 80,666.96

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Solution

The fourth proportional to 107,938.24, 148,965.48 and 80,666.96 is: 111,328.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,938.24 : 148,965.48 = 80,666.96 : x
  2. Step 2: Convert to fraction form
    107,938.24/148,965.48 = 80,666.96/x
  3. Step 3: Cross multiply
    107,938.24x = 148,965.48 × 80,666.96
  4. Step 4: Simplify right side
    107,938.24x = 12,016,591,671.71
  5. Step 5: Solve for x
    x = 12,016,591,671.71/107,938.24
  6. Step 6: Final answer
    x = 111,328.40

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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.