Home / 209,113.06-288,577.32-113,619.70

Finding the Fourth Proportional to 209,113.06, 288,577.32 and 113,619.70

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Solution

The fourth proportional to 209,113.06, 288,577.32 and 113,619.70 is: 156,795.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,113.06 : 288,577.32 = 113,619.70 : x
  2. Step 2: Convert to fraction form
    209,113.06/288,577.32 = 113,619.70/x
  3. Step 3: Cross multiply
    209,113.06x = 288,577.32 × 113,619.70
  4. Step 4: Simplify right side
    209,113.06x = 32,788,068,525.20
  5. Step 5: Solve for x
    x = 32,788,068,525.20/209,113.06
  6. Step 6: Final answer
    x = 156,795.89

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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.