Home / 149,139.42-205,744.38-88,675.71

Finding the Fourth Proportional to 149,139.42, 205,744.38 and 88,675.71

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Solution

The fourth proportional to 149,139.42, 205,744.38 and 88,675.71 is: 122,332.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,139.42 : 205,744.38 = 88,675.71 : x
  2. Step 2: Convert to fraction form
    149,139.42/205,744.38 = 88,675.71/x
  3. Step 3: Cross multiply
    149,139.42x = 205,744.38 × 88,675.71
  4. Step 4: Simplify right side
    149,139.42x = 18,244,528,975.01
  5. Step 5: Solve for x
    x = 18,244,528,975.01/149,139.42
  6. Step 6: Final answer
    x = 122,332.04

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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.