Home / 130,727.04-180,435.36-74,171.52

Finding the Fourth Proportional to 130,727.04, 180,435.36 and 74,171.52

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Solution

The fourth proportional to 130,727.04, 180,435.36 and 74,171.52 is: 102,374.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,727.04 : 180,435.36 = 74,171.52 : x
  2. Step 2: Convert to fraction form
    130,727.04/180,435.36 = 74,171.52/x
  3. Step 3: Cross multiply
    130,727.04x = 180,435.36 × 74,171.52
  4. Step 4: Simplify right side
    130,727.04x = 13,383,164,912.95
  5. Step 5: Solve for x
    x = 13,383,164,912.95/130,727.04
  6. Step 6: Final answer
    x = 102,374.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.