Home / 209,110.61-288,561.89-113,617.08

Finding the Fourth Proportional to 209,110.61, 288,561.89 and 113,617.08

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Solution

The fourth proportional to 209,110.61, 288,561.89 and 113,617.08 is: 156,785.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,110.61 : 288,561.89 = 113,617.08 : x
  2. Step 2: Convert to fraction form
    209,110.61/288,561.89 = 113,617.08/x
  3. Step 3: Cross multiply
    209,110.61x = 288,561.89 × 113,617.08
  4. Step 4: Simplify right side
    209,110.61x = 32,785,559,625.12
  5. Step 5: Solve for x
    x = 32,785,559,625.12/209,110.61
  6. Step 6: Final answer
    x = 156,785.73

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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.