Home / 112,407.36-155,054.30-74,153.33

Finding the Fourth Proportional to 112,407.36, 155,054.30 and 74,153.33

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Solution

The fourth proportional to 112,407.36, 155,054.30 and 74,153.33 is: 102,286.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,407.36 : 155,054.30 = 74,153.33 : x
  2. Step 2: Convert to fraction form
    112,407.36/155,054.30 = 74,153.33/x
  3. Step 3: Cross multiply
    112,407.36x = 155,054.30 × 74,153.33
  4. Step 4: Simplify right side
    112,407.36x = 11,497,791,529.78
  5. Step 5: Solve for x
    x = 11,497,791,529.78/112,407.36
  6. Step 6: Final answer
    x = 102,286.82

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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.