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Finding the Fourth Proportional to 140,475.72, 210,713.64 and 65,571

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Solution

The fourth proportional to 140,475.72, 210,713.64 and 65,571 is: 98,356.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,475.72 : 210,713.64 = 65,571 : x
  2. Step 2: Convert to fraction form
    140,475.72/210,713.64 = 65,571/x
  3. Step 3: Cross multiply
    140,475.72x = 210,713.64 × 65,571
  4. Step 4: Simplify right side
    140,475.72x = 13,816,704,088.44
  5. Step 5: Solve for x
    x = 13,816,704,088.44/140,475.72
  6. Step 6: Final answer
    x = 98,356.53

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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.