Home / 88,308.53-122,186.68-77,001.60

Finding the Fourth Proportional to 88,308.53, 122,186.68 and 77,001.60

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Solution

The fourth proportional to 88,308.53, 122,186.68 and 77,001.60 is: 106,542.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,308.53 : 122,186.68 = 77,001.60 : x
  2. Step 2: Convert to fraction form
    88,308.53/122,186.68 = 77,001.60/x
  3. Step 3: Cross multiply
    88,308.53x = 122,186.68 × 77,001.60
  4. Step 4: Simplify right side
    88,308.53x = 9,408,569,666.18
  5. Step 5: Solve for x
    x = 9,408,569,666.18/88,308.53
  6. Step 6: Final answer
    x = 106,542.03

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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.