Home / 109,942.30-151,720.66-59,641.30

Finding the Fourth Proportional to 109,942.30, 151,720.66 and 59,641.30

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Solution

The fourth proportional to 109,942.30, 151,720.66 and 59,641.30 is: 82,305.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,942.30 : 151,720.66 = 59,641.30 : x
  2. Step 2: Convert to fraction form
    109,942.30/151,720.66 = 59,641.30/x
  3. Step 3: Cross multiply
    109,942.30x = 151,720.66 × 59,641.30
  4. Step 4: Simplify right side
    109,942.30x = 9,048,817,399.26
  5. Step 5: Solve for x
    x = 9,048,817,399.26/109,942.30
  6. Step 6: Final answer
    x = 82,305.15

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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.