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Finding the Fourth Proportional to 140,061.83, 210,092.74 and 51,279.35

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Solution

The fourth proportional to 140,061.83, 210,092.74 and 51,279.35 is: 76,919.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,061.83 : 210,092.74 = 51,279.35 : x
  2. Step 2: Convert to fraction form
    140,061.83/210,092.74 = 51,279.35/x
  3. Step 3: Cross multiply
    140,061.83x = 210,092.74 × 51,279.35
  4. Step 4: Simplify right side
    140,061.83x = 10,773,417,968.26
  5. Step 5: Solve for x
    x = 10,773,417,968.26/140,061.83
  6. Step 6: Final answer
    x = 76,919.02

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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.