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Finding the Fourth Proportional to 140,534.88, 210,885.32 and 51,850.32

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Solution

The fourth proportional to 140,534.88, 210,885.32 and 51,850.32 is: 77,806.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,534.88 : 210,885.32 = 51,850.32 : x
  2. Step 2: Convert to fraction form
    140,534.88/210,885.32 = 51,850.32/x
  3. Step 3: Cross multiply
    140,534.88x = 210,885.32 × 51,850.32
  4. Step 4: Simplify right side
    140,534.88x = 10,934,471,325.30
  5. Step 5: Solve for x
    x = 10,934,471,325.30/140,534.88
  6. Step 6: Final answer
    x = 77,806.10

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1.5x scale

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.