Home / 113,124.20-168,456.12-111,881.72

Finding the Fourth Proportional to 113,124.20, 168,456.12 and 111,881.72

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Solution

The fourth proportional to 113,124.20, 168,456.12 and 111,881.72 is: 166,605.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,124.20 : 168,456.12 = 111,881.72 : x
  2. Step 2: Convert to fraction form
    113,124.20/168,456.12 = 111,881.72/x
  3. Step 3: Cross multiply
    113,124.20x = 168,456.12 × 111,881.72
  4. Step 4: Simplify right side
    113,124.20x = 18,847,160,450.13
  5. Step 5: Solve for x
    x = 18,847,160,450.13/113,124.20
  6. Step 6: Final answer
    x = 166,605.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.