Home / 209,158.88-288,641.10-113,665.58

Finding the Fourth Proportional to 209,158.88, 288,641.10 and 113,665.58

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Solution

The fourth proportional to 209,158.88, 288,641.10 and 113,665.58 is: 156,859.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,158.88 : 288,641.10 = 113,665.58 : x
  2. Step 2: Convert to fraction form
    209,158.88/288,641.10 = 113,665.58/x
  3. Step 3: Cross multiply
    209,158.88x = 288,641.10 × 113,665.58
  4. Step 4: Simplify right side
    209,158.88x = 32,808,556,600.13
  5. Step 5: Solve for x
    x = 32,808,556,600.13/209,158.88
  6. Step 6: Final answer
    x = 156,859.50

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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.