Home / 146,788.64-202,569.36-79,720.64

Finding the Fourth Proportional to 146,788.64, 202,569.36 and 79,720.64

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Solution

The fourth proportional to 146,788.64, 202,569.36 and 79,720.64 is: 110,015.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,788.64 : 202,569.36 = 79,720.64 : x
  2. Step 2: Convert to fraction form
    146,788.64/202,569.36 = 79,720.64/x
  3. Step 3: Cross multiply
    146,788.64x = 202,569.36 × 79,720.64
  4. Step 4: Simplify right side
    146,788.64x = 16,148,959,023.59
  5. Step 5: Solve for x
    x = 16,148,959,023.59/146,788.64
  6. Step 6: Final answer
    x = 110,015.05

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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.