Home / 91,864.14-126,679.17-86,506.53

Finding the Fourth Proportional to 91,864.14, 126,679.17 and 86,506.53

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Solution

The fourth proportional to 91,864.14, 126,679.17 and 86,506.53 is: 119,291.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,864.14 : 126,679.17 = 86,506.53 : x
  2. Step 2: Convert to fraction form
    91,864.14/126,679.17 = 86,506.53/x
  3. Step 3: Cross multiply
    91,864.14x = 126,679.17 × 86,506.53
  4. Step 4: Simplify right side
    91,864.14x = 10,958,575,419.98
  5. Step 5: Solve for x
    x = 10,958,575,419.98/91,864.14
  6. Step 6: Final answer
    x = 119,291.11

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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.