Home / 129,974.60-179,364.96-70,358.60

Finding the Fourth Proportional to 129,974.60, 179,364.96 and 70,358.60

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Solution

The fourth proportional to 129,974.60, 179,364.96 and 70,358.60 is: 97,094.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,974.60 : 179,364.96 = 70,358.60 : x
  2. Step 2: Convert to fraction form
    129,974.60/179,364.96 = 70,358.60/x
  3. Step 3: Cross multiply
    129,974.60x = 179,364.96 × 70,358.60
  4. Step 4: Simplify right side
    129,974.60x = 12,619,867,474.66
  5. Step 5: Solve for x
    x = 12,619,867,474.66/129,974.60
  6. Step 6: Final answer
    x = 97,094.87

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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.