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Finding the Fourth Proportional to 140,125.54, 210,182.43 and 65,219.92

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Solution

The fourth proportional to 140,125.54, 210,182.43 and 65,219.92 is: 97,827.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,125.54 : 210,182.43 = 65,219.92 : x
  2. Step 2: Convert to fraction form
    140,125.54/210,182.43 = 65,219.92/x
  3. Step 3: Cross multiply
    140,125.54x = 210,182.43 × 65,219.92
  4. Step 4: Simplify right side
    140,125.54x = 13,708,081,270.01
  5. Step 5: Solve for x
    x = 13,708,081,270.01/140,125.54
  6. Step 6: Final answer
    x = 97,827.14

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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.