Home / 140,664.78-194,117.70-77,006.67

Finding the Fourth Proportional to 140,664.78, 194,117.70 and 77,006.67

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Solution

The fourth proportional to 140,664.78, 194,117.70 and 77,006.67 is: 106,269.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,664.78 : 194,117.70 = 77,006.67 : x
  2. Step 2: Convert to fraction form
    140,664.78/194,117.70 = 77,006.67/x
  3. Step 3: Cross multiply
    140,664.78x = 194,117.70 × 77,006.67
  4. Step 4: Simplify right side
    140,664.78x = 14,948,357,665.06
  5. Step 5: Solve for x
    x = 14,948,357,665.06/140,664.78
  6. Step 6: Final answer
    x = 106,269.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.