Home / 130,435.30-195,520.56-74,159.08

Finding the Fourth Proportional to 130,435.30, 195,520.56 and 74,159.08

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Solution

The fourth proportional to 130,435.30, 195,520.56 and 74,159.08 is: 111,163.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,435.30 : 195,520.56 = 74,159.08 : x
  2. Step 2: Convert to fraction form
    130,435.30/195,520.56 = 74,159.08/x
  3. Step 3: Cross multiply
    130,435.30x = 195,520.56 × 74,159.08
  4. Step 4: Simplify right side
    130,435.30x = 14,499,624,850.68
  5. Step 5: Solve for x
    x = 14,499,624,850.68/130,435.30
  6. Step 6: Final answer
    x = 111,163.35

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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.