Home / 141,099.20-194,710.80-77,438.08

Finding the Fourth Proportional to 141,099.20, 194,710.80 and 77,438.08

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Solution

The fourth proportional to 141,099.20, 194,710.80 and 77,438.08 is: 106,861.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,099.20 : 194,710.80 = 77,438.08 : x
  2. Step 2: Convert to fraction form
    141,099.20/194,710.80 = 77,438.08/x
  3. Step 3: Cross multiply
    141,099.20x = 194,710.80 × 77,438.08
  4. Step 4: Simplify right side
    141,099.20x = 15,078,030,507.26
  5. Step 5: Solve for x
    x = 15,078,030,507.26/141,099.20
  6. Step 6: Final answer
    x = 106,861.20

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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.