Home / 99,113.77-136,777.07-53,791.74

Finding the Fourth Proportional to 99,113.77, 136,777.07 and 53,791.74

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Solution

The fourth proportional to 99,113.77, 136,777.07 and 53,791.74 is: 74,232.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,113.77 : 136,777.07 = 53,791.74 : x
  2. Step 2: Convert to fraction form
    99,113.77/136,777.07 = 53,791.74/x
  3. Step 3: Cross multiply
    99,113.77x = 136,777.07 × 53,791.74
  4. Step 4: Simplify right side
    99,113.77x = 7,357,476,587.40
  5. Step 5: Solve for x
    x = 7,357,476,587.40/99,113.77
  6. Step 6: Final answer
    x = 74,232.64

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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.