Home / 107,416.20-160,970.70-79,115.40

Finding the Fourth Proportional to 107,416.20, 160,970.70 and 79,115.40

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Solution

The fourth proportional to 107,416.20, 160,970.70 and 79,115.40 is: 118,559.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,416.20 : 160,970.70 = 79,115.40 : x
  2. Step 2: Convert to fraction form
    107,416.20/160,970.70 = 79,115.40/x
  3. Step 3: Cross multiply
    107,416.20x = 160,970.70 × 79,115.40
  4. Step 4: Simplify right side
    107,416.20x = 12,735,261,318.78
  5. Step 5: Solve for x
    x = 12,735,261,318.78/107,416.20
  6. Step 6: Final answer
    x = 118,559.97

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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.