Home / 93,362.40-140,335.20-91,612.80

Finding the Fourth Proportional to 93,362.40, 140,335.20 and 91,612.80

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Solution

The fourth proportional to 93,362.40, 140,335.20 and 91,612.80 is: 137,705.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,362.40 : 140,335.20 = 91,612.80 : x
  2. Step 2: Convert to fraction form
    93,362.40/140,335.20 = 91,612.80/x
  3. Step 3: Cross multiply
    93,362.40x = 140,335.20 × 91,612.80
  4. Step 4: Simplify right side
    93,362.40x = 12,856,500,610.56
  5. Step 5: Solve for x
    x = 12,856,500,610.56/93,362.40
  6. Step 6: Final answer
    x = 137,705.34

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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.