Home / 112,346.41-154,966.84-85,429.90

Finding the Fourth Proportional to 112,346.41, 154,966.84 and 85,429.90

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Solution

The fourth proportional to 112,346.41, 154,966.84 and 85,429.90 is: 117,839.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,346.41 : 154,966.84 = 85,429.90 : x
  2. Step 2: Convert to fraction form
    112,346.41/154,966.84 = 85,429.90/x
  3. Step 3: Cross multiply
    112,346.41x = 154,966.84 × 85,429.90
  4. Step 4: Simplify right side
    112,346.41x = 13,238,801,644.52
  5. Step 5: Solve for x
    x = 13,238,801,644.52/112,346.41
  6. Step 6: Final answer
    x = 117,839.12

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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.