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Finding the Fourth Proportional to 98,812, 136,360.56 and 54,100

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Solution

The fourth proportional to 98,812, 136,360.56 and 54,100 is: 74,658

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,812 : 136,360.56 = 54,100 : x
  2. Step 2: Convert to fraction form
    98,812/136,360.56 = 54,100/x
  3. Step 3: Cross multiply
    98,812x = 136,360.56 × 54,100
  4. Step 4: Simplify right side
    98,812x = 7,377,106,296
  5. Step 5: Solve for x
    x = 7,377,106,296/98,812
  6. Step 6: Final answer
    x = 74,658

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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.