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Finding the Fourth Proportional to 98,670.88, 148,045.24 and 43,228

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Solution

The fourth proportional to 98,670.88, 148,045.24 and 43,228 is: 64,859.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,670.88 : 148,045.24 = 43,228 : x
  2. Step 2: Convert to fraction form
    98,670.88/148,045.24 = 43,228/x
  3. Step 3: Cross multiply
    98,670.88x = 148,045.24 × 43,228
  4. Step 4: Simplify right side
    98,670.88x = 6,399,699,634.72
  5. Step 5: Solve for x
    x = 6,399,699,634.72/98,670.88
  6. Step 6: Final answer
    x = 64,859.05

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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.