Home / 98,775.82-148,196.99-31,318.86

Finding the Fourth Proportional to 98,775.82, 148,196.99 and 31,318.86

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Solution

The fourth proportional to 98,775.82, 148,196.99 and 31,318.86 is: 46,988.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,775.82 : 148,196.99 = 31,318.86 : x
  2. Step 2: Convert to fraction form
    98,775.82/148,196.99 = 31,318.86/x
  3. Step 3: Cross multiply
    98,775.82x = 148,196.99 × 31,318.86
  4. Step 4: Simplify right side
    98,775.82x = 4,641,360,860.53
  5. Step 5: Solve for x
    x = 4,641,360,860.53/98,775.82
  6. Step 6: Final answer
    x = 46,988.84

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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.