Home / 139,926.72-209,919.36-77,466.24

Finding the Fourth Proportional to 139,926.72, 209,919.36 and 77,466.24

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Solution

The fourth proportional to 139,926.72, 209,919.36 and 77,466.24 is: 116,215.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,926.72 : 209,919.36 = 77,466.24 : x
  2. Step 2: Convert to fraction form
    139,926.72/209,919.36 = 77,466.24/x
  3. Step 3: Cross multiply
    139,926.72x = 209,919.36 × 77,466.24
  4. Step 4: Simplify right side
    139,926.72x = 16,261,663,522.41
  5. Step 5: Solve for x
    x = 16,261,663,522.41/139,926.72
  6. Step 6: Final answer
    x = 116,215.57

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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.