Home / 107,890.52-149,034.20-97,830.32

Finding the Fourth Proportional to 107,890.52, 149,034.20 and 97,830.32

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Solution

The fourth proportional to 107,890.52, 149,034.20 and 97,830.32 is: 135,137.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,890.52 : 149,034.20 = 97,830.32 : x
  2. Step 2: Convert to fraction form
    107,890.52/149,034.20 = 97,830.32/x
  3. Step 3: Cross multiply
    107,890.52x = 149,034.20 × 97,830.32
  4. Step 4: Simplify right side
    107,890.52x = 14,580,062,242.62
  5. Step 5: Solve for x
    x = 14,580,062,242.62/107,890.52
  6. Step 6: Final answer
    x = 135,137.57

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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.