Home / 130,980.96-196,176.05-91,713.38

Finding the Fourth Proportional to 130,980.96, 196,176.05 and 91,713.38

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Solution

The fourth proportional to 130,980.96, 196,176.05 and 91,713.38 is: 137,363.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,980.96 : 196,176.05 = 91,713.38 : x
  2. Step 2: Convert to fraction form
    130,980.96/196,176.05 = 91,713.38/x
  3. Step 3: Cross multiply
    130,980.96x = 196,176.05 × 91,713.38
  4. Step 4: Simplify right side
    130,980.96x = 17,991,967,181.10
  5. Step 5: Solve for x
    x = 17,991,967,181.10/130,980.96
  6. Step 6: Final answer
    x = 137,363.23

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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.