Home / 107,981.14-149,004.65-69,742.38

Finding the Fourth Proportional to 107,981.14, 149,004.65 and 69,742.38

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Solution

The fourth proportional to 107,981.14, 149,004.65 and 69,742.38 is: 96,238.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,981.14 : 149,004.65 = 69,742.38 : x
  2. Step 2: Convert to fraction form
    107,981.14/149,004.65 = 69,742.38/x
  3. Step 3: Cross multiply
    107,981.14x = 149,004.65 × 69,742.38
  4. Step 4: Simplify right side
    107,981.14x = 10,391,938,922.07
  5. Step 5: Solve for x
    x = 10,391,938,922.07/107,981.14
  6. Step 6: Final answer
    x = 96,238.46

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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.