Home / 209,356.19-288,912.90-113,863.58

Finding the Fourth Proportional to 209,356.19, 288,912.90 and 113,863.58

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Solution

The fourth proportional to 209,356.19, 288,912.90 and 113,863.58 is: 157,132.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,356.19 : 288,912.90 = 113,863.58 : x
  2. Step 2: Convert to fraction form
    209,356.19/288,912.90 = 113,863.58/x
  3. Step 3: Cross multiply
    209,356.19x = 288,912.90 × 113,863.58
  4. Step 4: Simplify right side
    209,356.19x = 32,896,655,657.62
  5. Step 5: Solve for x
    x = 32,896,655,657.62/209,356.19
  6. Step 6: Final answer
    x = 157,132.48

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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.