Home / 90,804.28-136,319.82-61,352.68

Finding the Fourth Proportional to 90,804.28, 136,319.82 and 61,352.68

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Solution

The fourth proportional to 90,804.28, 136,319.82 and 61,352.68 is: 92,105.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,804.28 : 136,319.82 = 61,352.68 : x
  2. Step 2: Convert to fraction form
    90,804.28/136,319.82 = 61,352.68/x
  3. Step 3: Cross multiply
    90,804.28x = 136,319.82 × 61,352.68
  4. Step 4: Simplify right side
    90,804.28x = 8,363,586,294.12
  5. Step 5: Solve for x
    x = 8,363,586,294.12/90,804.28
  6. Step 6: Final answer
    x = 92,105.64

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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.