Home / 109,890.14-151,667.81-64,568.11

Finding the Fourth Proportional to 109,890.14, 151,667.81 and 64,568.11

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Solution

The fourth proportional to 109,890.14, 151,667.81 and 64,568.11 is: 89,115.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,890.14 : 151,667.81 = 64,568.11 : x
  2. Step 2: Convert to fraction form
    109,890.14/151,667.81 = 64,568.11/x
  3. Step 3: Cross multiply
    109,890.14x = 151,667.81 × 64,568.11
  4. Step 4: Simplify right side
    109,890.14x = 9,792,903,621.79
  5. Step 5: Solve for x
    x = 9,792,903,621.79/109,890.14
  6. Step 6: Final answer
    x = 89,115.40

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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.