Home / 130,110.70-194,983.80-103,502.20

Finding the Fourth Proportional to 130,110.70, 194,983.80 and 103,502.20

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Solution

The fourth proportional to 130,110.70, 194,983.80 and 103,502.20 is: 155,108.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,110.70 : 194,983.80 = 103,502.20 : x
  2. Step 2: Convert to fraction form
    130,110.70/194,983.80 = 103,502.20/x
  3. Step 3: Cross multiply
    130,110.70x = 194,983.80 × 103,502.20
  4. Step 4: Simplify right side
    130,110.70x = 20,181,252,264.36
  5. Step 5: Solve for x
    x = 20,181,252,264.36/130,110.70
  6. Step 6: Final answer
    x = 155,108.32

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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.