Home / 130,400.05-195,600.07-71,203.43

Finding the Fourth Proportional to 130,400.05, 195,600.07 and 71,203.43

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Solution

The fourth proportional to 130,400.05, 195,600.07 and 71,203.43 is: 106,805.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,400.05 : 195,600.07 = 71,203.43 : x
  2. Step 2: Convert to fraction form
    130,400.05/195,600.07 = 71,203.43/x
  3. Step 3: Cross multiply
    130,400.05x = 195,600.07 × 71,203.43
  4. Step 4: Simplify right side
    130,400.05x = 13,927,395,892.24
  5. Step 5: Solve for x
    x = 13,927,395,892.24/130,400.05
  6. Step 6: Final answer
    x = 106,805.14

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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.