Home / 93,657.40-140,363.52-81,781.24

Finding the Fourth Proportional to 93,657.40, 140,363.52 and 81,781.24

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Solution

The fourth proportional to 93,657.40, 140,363.52 and 81,781.24 is: 122,564.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,657.40 : 140,363.52 = 81,781.24 : x
  2. Step 2: Convert to fraction form
    93,657.40/140,363.52 = 81,781.24/x
  3. Step 3: Cross multiply
    93,657.40x = 140,363.52 × 81,781.24
  4. Step 4: Simplify right side
    93,657.40x = 11,479,102,716.36
  5. Step 5: Solve for x
    x = 11,479,102,716.36/93,657.40
  6. Step 6: Final answer
    x = 122,564.82

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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.