Home / 91,748.67-137,443.68-63,218.25

Finding the Fourth Proportional to 91,748.67, 137,443.68 and 63,218.25

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Solution

The fourth proportional to 91,748.67, 137,443.68 and 63,218.25 is: 94,703.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,748.67 : 137,443.68 = 63,218.25 : x
  2. Step 2: Convert to fraction form
    91,748.67/137,443.68 = 63,218.25/x
  3. Step 3: Cross multiply
    91,748.67x = 137,443.68 × 63,218.25
  4. Step 4: Simplify right side
    91,748.67x = 8,688,948,923.16
  5. Step 5: Solve for x
    x = 8,688,948,923.16/91,748.67
  6. Step 6: Final answer
    x = 94,703.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.