Home / 97,098.90-145,672.65-77,183.70

Finding the Fourth Proportional to 97,098.90, 145,672.65 and 77,183.70

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Solution

The fourth proportional to 97,098.90, 145,672.65 and 77,183.70 is: 115,794.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,098.90 : 145,672.65 = 77,183.70 : x
  2. Step 2: Convert to fraction form
    97,098.90/145,672.65 = 77,183.70/x
  3. Step 3: Cross multiply
    97,098.90x = 145,672.65 × 77,183.70
  4. Step 4: Simplify right side
    97,098.90x = 11,243,554,115.81
  5. Step 5: Solve for x
    x = 11,243,554,115.81/97,098.90
  6. Step 6: Final answer
    x = 115,794.87

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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.