Home / 130,214.40-194,803.20-112,876.80

Finding the Fourth Proportional to 130,214.40, 194,803.20 and 112,876.80

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Solution

The fourth proportional to 130,214.40, 194,803.20 and 112,876.80 is: 168,865.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,214.40 : 194,803.20 = 112,876.80 : x
  2. Step 2: Convert to fraction form
    130,214.40/194,803.20 = 112,876.80/x
  3. Step 3: Cross multiply
    130,214.40x = 194,803.20 × 112,876.80
  4. Step 4: Simplify right side
    130,214.40x = 21,988,761,845.76
  5. Step 5: Solve for x
    x = 21,988,761,845.76/130,214.40
  6. Step 6: Final answer
    x = 168,865.82

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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.