Home / 109,537.68-151,160.84-61,806.56

Finding the Fourth Proportional to 109,537.68, 151,160.84 and 61,806.56

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Solution

The fourth proportional to 109,537.68, 151,160.84 and 61,806.56 is: 85,292.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,537.68 : 151,160.84 = 61,806.56 : x
  2. Step 2: Convert to fraction form
    109,537.68/151,160.84 = 61,806.56/x
  3. Step 3: Cross multiply
    109,537.68x = 151,160.84 × 61,806.56
  4. Step 4: Simplify right side
    109,537.68x = 9,342,731,527.11
  5. Step 5: Solve for x
    x = 9,342,731,527.11/109,537.68
  6. Step 6: Final answer
    x = 85,292.40

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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.