Home / 130,982.65-196,334.09-74,701.57

Finding the Fourth Proportional to 130,982.65, 196,334.09 and 74,701.57

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Solution

The fourth proportional to 130,982.65, 196,334.09 and 74,701.57 is: 111,972.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,982.65 : 196,334.09 = 74,701.57 : x
  2. Step 2: Convert to fraction form
    130,982.65/196,334.09 = 74,701.57/x
  3. Step 3: Cross multiply
    130,982.65x = 196,334.09 × 74,701.57
  4. Step 4: Simplify right side
    130,982.65x = 14,666,464,767.52
  5. Step 5: Solve for x
    x = 14,666,464,767.52/130,982.65
  6. Step 6: Final answer
    x = 111,972.58

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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.