Home / 130,153.20-195,025.60-77,533.92

Finding the Fourth Proportional to 130,153.20, 195,025.60 and 77,533.92

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Solution

The fourth proportional to 130,153.20, 195,025.60 and 77,533.92 is: 116,179.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,153.20 : 195,025.60 = 77,533.92 : x
  2. Step 2: Convert to fraction form
    130,153.20/195,025.60 = 77,533.92/x
  3. Step 3: Cross multiply
    130,153.20x = 195,025.60 × 77,533.92
  4. Step 4: Simplify right side
    130,153.20x = 15,121,099,268.35
  5. Step 5: Solve for x
    x = 15,121,099,268.35/130,153.20
  6. Step 6: Final answer
    x = 116,179.24

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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.