Home / 127,438.14-175,869.05-70,079.81

Finding the Fourth Proportional to 127,438.14, 175,869.05 and 70,079.81

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Solution

The fourth proportional to 127,438.14, 175,869.05 and 70,079.81 is: 96,712.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,438.14 : 175,869.05 = 70,079.81 : x
  2. Step 2: Convert to fraction form
    127,438.14/175,869.05 = 70,079.81/x
  3. Step 3: Cross multiply
    127,438.14x = 175,869.05 × 70,079.81
  4. Step 4: Simplify right side
    127,438.14x = 12,324,869,608.88
  5. Step 5: Solve for x
    x = 12,324,869,608.88/127,438.14
  6. Step 6: Final answer
    x = 96,712.57

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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.