Home / 107,212.91-147,960.53-61,899.08

Finding the Fourth Proportional to 107,212.91, 147,960.53 and 61,899.08

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Solution

The fourth proportional to 107,212.91, 147,960.53 and 61,899.08 is: 85,424.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,212.91 : 147,960.53 = 61,899.08 : x
  2. Step 2: Convert to fraction form
    107,212.91/147,960.53 = 61,899.08/x
  3. Step 3: Cross multiply
    107,212.91x = 147,960.53 × 61,899.08
  4. Step 4: Simplify right side
    107,212.91x = 9,158,619,634.01
  5. Step 5: Solve for x
    x = 9,158,619,634.01/107,212.91
  6. Step 6: Final answer
    x = 85,424.60

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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.