Home / 140,583.47-210,781.26-77,433.10

Finding the Fourth Proportional to 140,583.47, 210,781.26 and 77,433.10

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Solution

The fourth proportional to 140,583.47, 210,781.26 and 77,433.10 is: 116,097.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,583.47 : 210,781.26 = 77,433.10 : x
  2. Step 2: Convert to fraction form
    140,583.47/210,781.26 = 77,433.10/x
  3. Step 3: Cross multiply
    140,583.47x = 210,781.26 × 77,433.10
  4. Step 4: Simplify right side
    140,583.47x = 16,321,445,856.75
  5. Step 5: Solve for x
    x = 16,321,445,856.75/140,583.47
  6. Step 6: Final answer
    x = 116,097.91

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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.