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Finding the Fourth Proportional to 140,263.80, 210,330.90 and 61,337.40

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Solution

The fourth proportional to 140,263.80, 210,330.90 and 61,337.40 is: 91,977.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,263.80 : 210,330.90 = 61,337.40 : x
  2. Step 2: Convert to fraction form
    140,263.80/210,330.90 = 61,337.40/x
  3. Step 3: Cross multiply
    140,263.80x = 210,330.90 × 61,337.40
  4. Step 4: Simplify right side
    140,263.80x = 12,901,150,545.66
  5. Step 5: Solve for x
    x = 12,901,150,545.66/140,263.80
  6. Step 6: Final answer
    x = 91,977.76

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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.