Home / 109,535.68-151,158.08-61,804.56

Finding the Fourth Proportional to 109,535.68, 151,158.08 and 61,804.56

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Solution

The fourth proportional to 109,535.68, 151,158.08 and 61,804.56 is: 85,289.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,535.68 : 151,158.08 = 61,804.56 : x
  2. Step 2: Convert to fraction form
    109,535.68/151,158.08 = 61,804.56/x
  3. Step 3: Cross multiply
    109,535.68x = 151,158.08 × 61,804.56
  4. Step 4: Simplify right side
    109,535.68x = 9,342,258,624.84
  5. Step 5: Solve for x
    x = 9,342,258,624.84/109,535.68
  6. Step 6: Final answer
    x = 85,289.64

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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.