Home / 113,121.60-169,639.20-34,209.60

Finding the Fourth Proportional to 113,121.60, 169,639.20 and 34,209.60

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Solution

The fourth proportional to 113,121.60, 169,639.20 and 34,209.60 is: 51,301.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,121.60 : 169,639.20 = 34,209.60 : x
  2. Step 2: Convert to fraction form
    113,121.60/169,639.20 = 34,209.60/x
  3. Step 3: Cross multiply
    113,121.60x = 169,639.20 × 34,209.60
  4. Step 4: Simplify right side
    113,121.60x = 5,803,289,176.32
  5. Step 5: Solve for x
    x = 5,803,289,176.32/113,121.60
  6. Step 6: Final answer
    x = 51,301.34

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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.