Home / 140,540.40-210,737.70-51,748.20

Finding the Fourth Proportional to 140,540.40, 210,737.70 and 51,748.20

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Solution

The fourth proportional to 140,540.40, 210,737.70 and 51,748.20 is: 77,595.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,540.40 : 210,737.70 = 51,748.20 : x
  2. Step 2: Convert to fraction form
    140,540.40/210,737.70 = 51,748.20/x
  3. Step 3: Cross multiply
    140,540.40x = 210,737.70 × 51,748.20
  4. Step 4: Simplify right side
    140,540.40x = 10,905,296,647.14
  5. Step 5: Solve for x
    x = 10,905,296,647.14/140,540.40
  6. Step 6: Final answer
    x = 77,595.46

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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.