Home / 140,665.71-194,119.01-77,007.60

Finding the Fourth Proportional to 140,665.71, 194,119.01 and 77,007.60

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Solution

The fourth proportional to 140,665.71, 194,119.01 and 77,007.60 is: 106,270.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,665.71 : 194,119.01 = 77,007.60 : x
  2. Step 2: Convert to fraction form
    140,665.71/194,119.01 = 77,007.60/x
  3. Step 3: Cross multiply
    140,665.71x = 194,119.01 × 77,007.60
  4. Step 4: Simplify right side
    140,665.71x = 14,948,638,689.44
  5. Step 5: Solve for x
    x = 14,948,638,689.44/140,665.71
  6. Step 6: Final answer
    x = 106,270.67

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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.