Home / 130,109.70-194,982.30-103,501.20

Finding the Fourth Proportional to 130,109.70, 194,982.30 and 103,501.20

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Solution

The fourth proportional to 130,109.70, 194,982.30 and 103,501.20 is: 155,106.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,109.70 : 194,982.30 = 103,501.20 : x
  2. Step 2: Convert to fraction form
    130,109.70/194,982.30 = 103,501.20/x
  3. Step 3: Cross multiply
    130,109.70x = 194,982.30 × 103,501.20
  4. Step 4: Simplify right side
    130,109.70x = 20,180,902,028.76
  5. Step 5: Solve for x
    x = 20,180,902,028.76/130,109.70
  6. Step 6: Final answer
    x = 155,106.82

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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.