Home / 209,151.05-288,627.07-113,657.74

Finding the Fourth Proportional to 209,151.05, 288,627.07 and 113,657.74

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Solution

The fourth proportional to 209,151.05, 288,627.07 and 113,657.74 is: 156,846.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,151.05 : 288,627.07 = 113,657.74 : x
  2. Step 2: Convert to fraction form
    209,151.05/288,627.07 = 113,657.74/x
  3. Step 3: Cross multiply
    209,151.05x = 288,627.07 × 113,657.74
  4. Step 4: Simplify right side
    209,151.05x = 32,804,700,479.02
  5. Step 5: Solve for x
    x = 32,804,700,479.02/209,151.05
  6. Step 6: Final answer
    x = 156,846.93

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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.