Home / 97,837.01-135,286.85-77,658.86

Finding the Fourth Proportional to 97,837.01, 135,286.85 and 77,658.86

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Solution

The fourth proportional to 97,837.01, 135,286.85 and 77,658.86 is: 107,384.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,837.01 : 135,286.85 = 77,658.86 : x
  2. Step 2: Convert to fraction form
    97,837.01/135,286.85 = 77,658.86/x
  3. Step 3: Cross multiply
    97,837.01x = 135,286.85 × 77,658.86
  4. Step 4: Simplify right side
    97,837.01x = 10,506,221,479.26
  5. Step 5: Solve for x
    x = 10,506,221,479.26/97,837.01
  6. Step 6: Final answer
    x = 107,384.95

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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.