Home / 209,158.13-288,640.06-113,664.83

Finding the Fourth Proportional to 209,158.13, 288,640.06 and 113,664.83

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Solution

The fourth proportional to 209,158.13, 288,640.06 and 113,664.83 is: 156,858.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,158.13 : 288,640.06 = 113,664.83 : x
  2. Step 2: Convert to fraction form
    209,158.13/288,640.06 = 113,664.83/x
  3. Step 3: Cross multiply
    209,158.13x = 288,640.06 × 113,664.83
  4. Step 4: Simplify right side
    209,158.13x = 32,808,221,623.73
  5. Step 5: Solve for x
    x = 32,808,221,623.73/209,158.13
  6. Step 6: Final answer
    x = 156,858.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.