Home / 104,961.40-157,442.10-91,839.40

Finding the Fourth Proportional to 104,961.40, 157,442.10 and 91,839.40

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Solution

The fourth proportional to 104,961.40, 157,442.10 and 91,839.40 is: 137,759.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,961.40 : 157,442.10 = 91,839.40 : x
  2. Step 2: Convert to fraction form
    104,961.40/157,442.10 = 91,839.40/x
  3. Step 3: Cross multiply
    104,961.40x = 157,442.10 × 91,839.40
  4. Step 4: Simplify right side
    104,961.40x = 14,459,387,998.74
  5. Step 5: Solve for x
    x = 14,459,387,998.74/104,961.40
  6. Step 6: Final answer
    x = 137,759.10

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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.