Home / 130,979.30-196,329.02-74,698.20

Finding the Fourth Proportional to 130,979.30, 196,329.02 and 74,698.20

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Solution

The fourth proportional to 130,979.30, 196,329.02 and 74,698.20 is: 111,967.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,979.30 : 196,329.02 = 74,698.20 : x
  2. Step 2: Convert to fraction form
    130,979.30/196,329.02 = 74,698.20/x
  3. Step 3: Cross multiply
    130,979.30x = 196,329.02 × 74,698.20
  4. Step 4: Simplify right side
    130,979.30x = 14,665,424,028.27
  5. Step 5: Solve for x
    x = 14,665,424,028.27/130,979.30
  6. Step 6: Final answer
    x = 111,967.50

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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.