Home / 99,820.39-149,656.77-47,168.38

Finding the Fourth Proportional to 99,820.39, 149,656.77 and 47,168.38

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Solution

The fourth proportional to 99,820.39, 149,656.77 and 47,168.38 is: 70,717.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,820.39 : 149,656.77 = 47,168.38 : x
  2. Step 2: Convert to fraction form
    99,820.39/149,656.77 = 47,168.38/x
  3. Step 3: Cross multiply
    99,820.39x = 149,656.77 × 47,168.38
  4. Step 4: Simplify right side
    99,820.39x = 7,059,067,396.93
  5. Step 5: Solve for x
    x = 7,059,067,396.93/99,820.39
  6. Step 6: Final answer
    x = 70,717.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.