Home / 112,174.80-154,796.16-61,186.32

Finding the Fourth Proportional to 112,174.80, 154,796.16 and 61,186.32

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Solution

The fourth proportional to 112,174.80, 154,796.16 and 61,186.32 is: 84,434.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,174.80 : 154,796.16 = 61,186.32 : x
  2. Step 2: Convert to fraction form
    112,174.80/154,796.16 = 61,186.32/x
  3. Step 3: Cross multiply
    112,174.80x = 154,796.16 × 61,186.32
  4. Step 4: Simplify right side
    112,174.80x = 9,471,407,380.53
  5. Step 5: Solve for x
    x = 9,471,407,380.53/112,174.80
  6. Step 6: Final answer
    x = 84,434.36

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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.