Home / 107,147.20-160,567.20-78,846.40

Finding the Fourth Proportional to 107,147.20, 160,567.20 and 78,846.40

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Solution

The fourth proportional to 107,147.20, 160,567.20 and 78,846.40 is: 118,156.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,147.20 : 160,567.20 = 78,846.40 : x
  2. Step 2: Convert to fraction form
    107,147.20/160,567.20 = 78,846.40/x
  3. Step 3: Cross multiply
    107,147.20x = 160,567.20 × 78,846.40
  4. Step 4: Simplify right side
    107,147.20x = 12,660,145,678.08
  5. Step 5: Solve for x
    x = 12,660,145,678.08/107,147.20
  6. Step 6: Final answer
    x = 118,156.57

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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.