Home / 99,113.19-136,777.20-53,791.56

Finding the Fourth Proportional to 99,113.19, 136,777.20 and 53,791.56

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Solution

The fourth proportional to 99,113.19, 136,777.20 and 53,791.56 is: 74,232.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,113.19 : 136,777.20 = 53,791.56 : x
  2. Step 2: Convert to fraction form
    99,113.19/136,777.20 = 53,791.56/x
  3. Step 3: Cross multiply
    99,113.19x = 136,777.20 × 53,791.56
  4. Step 4: Simplify right side
    99,113.19x = 7,357,458,960.43
  5. Step 5: Solve for x
    x = 7,357,458,960.43/99,113.19
  6. Step 6: Final answer
    x = 74,232.89

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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.