Home / 107,138.80-160,708.20-89,772.40

Finding the Fourth Proportional to 107,138.80, 160,708.20 and 89,772.40

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Solution

The fourth proportional to 107,138.80, 160,708.20 and 89,772.40 is: 134,658.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,138.80 : 160,708.20 = 89,772.40 : x
  2. Step 2: Convert to fraction form
    107,138.80/160,708.20 = 89,772.40/x
  3. Step 3: Cross multiply
    107,138.80x = 160,708.20 × 89,772.40
  4. Step 4: Simplify right side
    107,138.80x = 14,427,160,813.68
  5. Step 5: Solve for x
    x = 14,427,160,813.68/107,138.80
  6. Step 6: Final answer
    x = 134,658.60

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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.