Home / 130,108.20-194,980.05-103,499.70

Finding the Fourth Proportional to 130,108.20, 194,980.05 and 103,499.70

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Solution

The fourth proportional to 130,108.20, 194,980.05 and 103,499.70 is: 155,104.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,108.20 : 194,980.05 = 103,499.70 : x
  2. Step 2: Convert to fraction form
    130,108.20/194,980.05 = 103,499.70/x
  3. Step 3: Cross multiply
    130,108.20x = 194,980.05 × 103,499.70
  4. Step 4: Simplify right side
    130,108.20x = 20,180,376,680.99
  5. Step 5: Solve for x
    x = 20,180,376,680.99/130,108.20
  6. Step 6: Final answer
    x = 155,104.57

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1.5x scale

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.