Home / 130,588.20-195,590.70-100,772.10

Finding the Fourth Proportional to 130,588.20, 195,590.70 and 100,772.10

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Solution

The fourth proportional to 130,588.20, 195,590.70 and 100,772.10 is: 150,933.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,588.20 : 195,590.70 = 100,772.10 : x
  2. Step 2: Convert to fraction form
    130,588.20/195,590.70 = 100,772.10/x
  3. Step 3: Cross multiply
    130,588.20x = 195,590.70 × 100,772.10
  4. Step 4: Simplify right side
    130,588.20x = 19,710,085,579.47
  5. Step 5: Solve for x
    x = 19,710,085,579.47/130,588.20
  6. Step 6: Final answer
    x = 150,933.13

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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.