Home / 98,776.72-148,198.32-31,319.74

Finding the Fourth Proportional to 98,776.72, 148,198.32 and 31,319.74

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Solution

The fourth proportional to 98,776.72, 148,198.32 and 31,319.74 is: 46,990.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,776.72 : 148,198.32 = 31,319.74 : x
  2. Step 2: Convert to fraction form
    98,776.72/148,198.32 = 31,319.74/x
  3. Step 3: Cross multiply
    98,776.72x = 148,198.32 × 31,319.74
  4. Step 4: Simplify right side
    98,776.72x = 4,641,532,850.84
  5. Step 5: Solve for x
    x = 4,641,532,850.84/98,776.72
  6. Step 6: Final answer
    x = 46,990.15

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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.