Home / 209,085.73-288,539.69-113,592.40

Finding the Fourth Proportional to 209,085.73, 288,539.69 and 113,592.40

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Solution

The fourth proportional to 209,085.73, 288,539.69 and 113,592.40 is: 156,758.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,085.73 : 288,539.69 = 113,592.40 : x
  2. Step 2: Convert to fraction form
    209,085.73/288,539.69 = 113,592.40/x
  3. Step 3: Cross multiply
    209,085.73x = 288,539.69 × 113,592.40
  4. Step 4: Simplify right side
    209,085.73x = 32,775,914,593.04
  5. Step 5: Solve for x
    x = 32,775,914,593.04/209,085.73
  6. Step 6: Final answer
    x = 156,758.26

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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.