Home / 113,969.40-157,188.10-106,330.04

Finding the Fourth Proportional to 113,969.40, 157,188.10 and 106,330.04

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Solution

The fourth proportional to 113,969.40, 157,188.10 and 106,330.04 is: 146,651.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,969.40 : 157,188.10 = 106,330.04 : x
  2. Step 2: Convert to fraction form
    113,969.40/157,188.10 = 106,330.04/x
  3. Step 3: Cross multiply
    113,969.40x = 157,188.10 × 106,330.04
  4. Step 4: Simplify right side
    113,969.40x = 16,713,816,960.52
  5. Step 5: Solve for x
    x = 16,713,816,960.52/113,969.40
  6. Step 6: Final answer
    x = 146,651.79

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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.