Home / 106,074.90-159,403.98-99,139.68

Finding the Fourth Proportional to 106,074.90, 159,403.98 and 99,139.68

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Solution

The fourth proportional to 106,074.90, 159,403.98 and 99,139.68 is: 148,982.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,074.90 : 159,403.98 = 99,139.68 : x
  2. Step 2: Convert to fraction form
    106,074.90/159,403.98 = 99,139.68/x
  3. Step 3: Cross multiply
    106,074.90x = 159,403.98 × 99,139.68
  4. Step 4: Simplify right side
    106,074.90x = 15,803,259,567.93
  5. Step 5: Solve for x
    x = 15,803,259,567.93/106,074.90
  6. Step 6: Final answer
    x = 148,982.08

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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.