Home / 98,971.18-148,489.34-65,821.66

Finding the Fourth Proportional to 98,971.18, 148,489.34 and 65,821.66

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Solution

The fourth proportional to 98,971.18, 148,489.34 and 65,821.66 is: 98,754.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,971.18 : 148,489.34 = 65,821.66 : x
  2. Step 2: Convert to fraction form
    98,971.18/148,489.34 = 65,821.66/x
  3. Step 3: Cross multiply
    98,971.18x = 148,489.34 × 65,821.66
  4. Step 4: Simplify right side
    98,971.18x = 9,773,814,851.10
  5. Step 5: Solve for x
    x = 9,773,814,851.10/98,971.18
  6. Step 6: Final answer
    x = 98,754.15

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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.