Home / 117,408.60-176,036.40-77,306.28

Finding the Fourth Proportional to 117,408.60, 176,036.40 and 77,306.28

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Solution

The fourth proportional to 117,408.60, 176,036.40 and 77,306.28 is: 115,909.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,408.60 : 176,036.40 = 77,306.28 : x
  2. Step 2: Convert to fraction form
    117,408.60/176,036.40 = 77,306.28/x
  3. Step 3: Cross multiply
    117,408.60x = 176,036.40 × 77,306.28
  4. Step 4: Simplify right side
    117,408.60x = 13,608,719,228.59
  5. Step 5: Solve for x
    x = 13,608,719,228.59/117,408.60
  6. Step 6: Final answer
    x = 115,909.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.