Home / 148,639.06-205,292.26-97,878.72

Finding the Fourth Proportional to 148,639.06, 205,292.26 and 97,878.72

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Solution

The fourth proportional to 148,639.06, 205,292.26 and 97,878.72 is: 135,184.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,639.06 : 205,292.26 = 97,878.72 : x
  2. Step 2: Convert to fraction form
    148,639.06/205,292.26 = 97,878.72/x
  3. Step 3: Cross multiply
    148,639.06x = 205,292.26 × 97,878.72
  4. Step 4: Simplify right side
    148,639.06x = 20,093,743,634.71
  5. Step 5: Solve for x
    x = 20,093,743,634.71/148,639.06
  6. Step 6: Final answer
    x = 135,184.81

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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.