Home / 106,073.90-159,402.48-99,138.68

Finding the Fourth Proportional to 106,073.90, 159,402.48 and 99,138.68

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Solution

The fourth proportional to 106,073.90, 159,402.48 and 99,138.68 is: 148,980.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,073.90 : 159,402.48 = 99,138.68 : x
  2. Step 2: Convert to fraction form
    106,073.90/159,402.48 = 99,138.68/x
  3. Step 3: Cross multiply
    106,073.90x = 159,402.48 × 99,138.68
  4. Step 4: Simplify right side
    106,073.90x = 15,802,951,455.93
  5. Step 5: Solve for x
    x = 15,802,951,455.93/106,073.90
  6. Step 6: Final answer
    x = 148,980.58

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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.