Home / 130,990.13-196,486.56-71,793.51

Finding the Fourth Proportional to 130,990.13, 196,486.56 and 71,793.51

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Solution

The fourth proportional to 130,990.13, 196,486.56 and 71,793.51 is: 107,691.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,990.13 : 196,486.56 = 71,793.51 : x
  2. Step 2: Convert to fraction form
    130,990.13/196,486.56 = 71,793.51/x
  3. Step 3: Cross multiply
    130,990.13x = 196,486.56 × 71,793.51
  4. Step 4: Simplify right side
    130,990.13x = 14,106,459,073.40
  5. Step 5: Solve for x
    x = 14,106,459,073.40/130,990.13
  6. Step 6: Final answer
    x = 107,691.01

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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.