Home / 96,651.20-144,976.80-76,822.40

Finding the Fourth Proportional to 96,651.20, 144,976.80 and 76,822.40

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Solution

The fourth proportional to 96,651.20, 144,976.80 and 76,822.40 is: 115,233.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,651.20 : 144,976.80 = 76,822.40 : x
  2. Step 2: Convert to fraction form
    96,651.20/144,976.80 = 76,822.40/x
  3. Step 3: Cross multiply
    96,651.20x = 144,976.80 × 76,822.40
  4. Step 4: Simplify right side
    96,651.20x = 11,137,465,720.32
  5. Step 5: Solve for x
    x = 11,137,465,720.32/96,651.20
  6. Step 6: Final answer
    x = 115,233.60

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1.5x scale

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.