Home / 96,730.32-133,420.68-78,825.36

Finding the Fourth Proportional to 96,730.32, 133,420.68 and 78,825.36

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Solution

The fourth proportional to 96,730.32, 133,420.68 and 78,825.36 is: 108,724.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,730.32 : 133,420.68 = 78,825.36 : x
  2. Step 2: Convert to fraction form
    96,730.32/133,420.68 = 78,825.36/x
  3. Step 3: Cross multiply
    96,730.32x = 133,420.68 × 78,825.36
  4. Step 4: Simplify right side
    96,730.32x = 10,516,933,132.44
  5. Step 5: Solve for x
    x = 10,516,933,132.44/96,730.32
  6. Step 6: Final answer
    x = 108,724.27

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1.5x scale

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.