Home / 115,431.40-173,147.10-70,913.80

Finding the Fourth Proportional to 115,431.40, 173,147.10 and 70,913.80

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Solution

The fourth proportional to 115,431.40, 173,147.10 and 70,913.80 is: 106,370.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,431.40 : 173,147.10 = 70,913.80 : x
  2. Step 2: Convert to fraction form
    115,431.40/173,147.10 = 70,913.80/x
  3. Step 3: Cross multiply
    115,431.40x = 173,147.10 × 70,913.80
  4. Step 4: Simplify right side
    115,431.40x = 12,278,518,819.98
  5. Step 5: Solve for x
    x = 12,278,518,819.98/115,431.40
  6. Step 6: Final answer
    x = 106,370.70

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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.