Home / 106,068.65-159,394.59-99,133.43

Finding the Fourth Proportional to 106,068.65, 159,394.59 and 99,133.43

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Solution

The fourth proportional to 106,068.65, 159,394.59 and 99,133.43 is: 148,972.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,068.65 : 159,394.59 = 99,133.43 : x
  2. Step 2: Convert to fraction form
    106,068.65/159,394.59 = 99,133.43/x
  3. Step 3: Cross multiply
    106,068.65x = 159,394.59 × 99,133.43
  4. Step 4: Simplify right side
    106,068.65x = 15,801,332,828.63
  5. Step 5: Solve for x
    x = 15,801,332,828.63/106,068.65
  6. Step 6: Final answer
    x = 148,972.69

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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.