Home / 113,634.12-156,757.41-86,729.93

Finding the Fourth Proportional to 113,634.12, 156,757.41 and 86,729.93

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Solution

The fourth proportional to 113,634.12, 156,757.41 and 86,729.93 is: 119,643.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,634.12 : 156,757.41 = 86,729.93 : x
  2. Step 2: Convert to fraction form
    113,634.12/156,757.41 = 86,729.93/x
  3. Step 3: Cross multiply
    113,634.12x = 156,757.41 × 86,729.93
  4. Step 4: Simplify right side
    113,634.12x = 13,595,558,412.49
  5. Step 5: Solve for x
    x = 13,595,558,412.49/113,634.12
  6. Step 6: Final answer
    x = 119,643.28

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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.