Home / 140,977.29-194,548.68-77,316.42

Finding the Fourth Proportional to 140,977.29, 194,548.68 and 77,316.42

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Solution

The fourth proportional to 140,977.29, 194,548.68 and 77,316.42 is: 106,696.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,977.29 : 194,548.68 = 77,316.42 : x
  2. Step 2: Convert to fraction form
    140,977.29/194,548.68 = 77,316.42/x
  3. Step 3: Cross multiply
    140,977.29x = 194,548.68 × 77,316.42
  4. Step 4: Simplify right side
    140,977.29x = 15,041,807,453.33
  5. Step 5: Solve for x
    x = 15,041,807,453.33/140,977.29
  6. Step 6: Final answer
    x = 106,696.67

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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.