Home / 100,197.17-149,411.60-99,297.31

Finding the Fourth Proportional to 100,197.17, 149,411.60 and 99,297.31

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Solution

The fourth proportional to 100,197.17, 149,411.60 and 99,297.31 is: 148,069.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,197.17 : 149,411.60 = 99,297.31 : x
  2. Step 2: Convert to fraction form
    100,197.17/149,411.60 = 99,297.31/x
  3. Step 3: Cross multiply
    100,197.17x = 149,411.60 × 99,297.31
  4. Step 4: Simplify right side
    100,197.17x = 14,836,169,092.78
  5. Step 5: Solve for x
    x = 14,836,169,092.78/100,197.17
  6. Step 6: Final answer
    x = 148,069.75

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.