Home / 99,113.15-136,776.21-53,791.12

Finding the Fourth Proportional to 99,113.15, 136,776.21 and 53,791.12

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Solution

The fourth proportional to 99,113.15, 136,776.21 and 53,791.12 is: 74,231.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,113.15 : 136,776.21 = 53,791.12 : x
  2. Step 2: Convert to fraction form
    99,113.15/136,776.21 = 53,791.12/x
  3. Step 3: Cross multiply
    99,113.15x = 136,776.21 × 53,791.12
  4. Step 4: Simplify right side
    99,113.15x = 7,357,345,525.26
  5. Step 5: Solve for x
    x = 7,357,345,525.26/99,113.15
  6. Step 6: Final answer
    x = 74,231.78

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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.