Home / 107,427.20-160,987.20-79,126.40

Finding the Fourth Proportional to 107,427.20, 160,987.20 and 79,126.40

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Solution

The fourth proportional to 107,427.20, 160,987.20 and 79,126.40 is: 118,576.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,427.20 : 160,987.20 = 79,126.40 : x
  2. Step 2: Convert to fraction form
    107,427.20/160,987.20 = 79,126.40/x
  3. Step 3: Cross multiply
    107,427.20x = 160,987.20 × 79,126.40
  4. Step 4: Simplify right side
    107,427.20x = 12,738,337,582.08
  5. Step 5: Solve for x
    x = 12,738,337,582.08/107,427.20
  6. Step 6: Final answer
    x = 118,576.46

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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.