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Finding the Fourth Proportional to 107,946, 148,978.44 and 63,234

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Solution

The fourth proportional to 107,946, 148,978.44 and 63,234 is: 87,270.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,946 : 148,978.44 = 63,234 : x
  2. Step 2: Convert to fraction form
    107,946/148,978.44 = 63,234/x
  3. Step 3: Cross multiply
    107,946x = 148,978.44 × 63,234
  4. Step 4: Simplify right side
    107,946x = 9,420,502,674.96
  5. Step 5: Solve for x
    x = 9,420,502,674.96/107,946
  6. Step 6: Final answer
    x = 87,270.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.