Home / 98,840.12-148,293.10-65,690.60

Finding the Fourth Proportional to 98,840.12, 148,293.10 and 65,690.60

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Solution

The fourth proportional to 98,840.12, 148,293.10 and 65,690.60 is: 98,557.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,840.12 : 148,293.10 = 65,690.60 : x
  2. Step 2: Convert to fraction form
    98,840.12/148,293.10 = 65,690.60/x
  3. Step 3: Cross multiply
    98,840.12x = 148,293.10 × 65,690.60
  4. Step 4: Simplify right side
    98,840.12x = 9,741,462,714.86
  5. Step 5: Solve for x
    x = 9,741,462,714.86/98,840.12
  6. Step 6: Final answer
    x = 98,557.78

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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.