Home / 130,474.40-195,711.60-112,978.40

Finding the Fourth Proportional to 130,474.40, 195,711.60 and 112,978.40

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Solution

The fourth proportional to 130,474.40, 195,711.60 and 112,978.40 is: 169,467.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,474.40 : 195,711.60 = 112,978.40 : x
  2. Step 2: Convert to fraction form
    130,474.40/195,711.60 = 112,978.40/x
  3. Step 3: Cross multiply
    130,474.40x = 195,711.60 × 112,978.40
  4. Step 4: Simplify right side
    130,474.40x = 22,111,183,429.44
  5. Step 5: Solve for x
    x = 22,111,183,429.44/130,474.40
  6. Step 6: Final answer
    x = 169,467.60

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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.