Home / 98,936.20-136,541.46-56,497.96

Finding the Fourth Proportional to 98,936.20, 136,541.46 and 56,497.96

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Solution

The fourth proportional to 98,936.20, 136,541.46 and 56,497.96 is: 77,972.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,936.20 : 136,541.46 = 56,497.96 : x
  2. Step 2: Convert to fraction form
    98,936.20/136,541.46 = 56,497.96/x
  3. Step 3: Cross multiply
    98,936.20x = 136,541.46 × 56,497.96
  4. Step 4: Simplify right side
    98,936.20x = 7,714,313,945.42
  5. Step 5: Solve for x
    x = 7,714,313,945.42/98,936.20
  6. Step 6: Final answer
    x = 77,972.61

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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.