Home / 107,148.20-160,568.70-78,847.40

Finding the Fourth Proportional to 107,148.20, 160,568.70 and 78,847.40

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Solution

The fourth proportional to 107,148.20, 160,568.70 and 78,847.40 is: 118,158.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,148.20 : 160,568.70 = 78,847.40 : x
  2. Step 2: Convert to fraction form
    107,148.20/160,568.70 = 78,847.40/x
  3. Step 3: Cross multiply
    107,148.20x = 160,568.70 × 78,847.40
  4. Step 4: Simplify right side
    107,148.20x = 12,660,424,516.38
  5. Step 5: Solve for x
    x = 12,660,424,516.38/107,148.20
  6. Step 6: Final answer
    x = 118,158.07

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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.