Home / 107,125.20-160,534.20-78,824.40

Finding the Fourth Proportional to 107,125.20, 160,534.20 and 78,824.40

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Solution

The fourth proportional to 107,125.20, 160,534.20 and 78,824.40 is: 118,123.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,125.20 : 160,534.20 = 78,824.40 : x
  2. Step 2: Convert to fraction form
    107,125.20/160,534.20 = 78,824.40/x
  3. Step 3: Cross multiply
    107,125.20x = 160,534.20 × 78,824.40
  4. Step 4: Simplify right side
    107,125.20x = 12,654,011,994.48
  5. Step 5: Solve for x
    x = 12,654,011,994.48/107,125.20
  6. Step 6: Final answer
    x = 118,123.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.