Home / 103,882.26-143,357.04-56,135.46

Finding the Fourth Proportional to 103,882.26, 143,357.04 and 56,135.46

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Solution

The fourth proportional to 103,882.26, 143,357.04 and 56,135.46 is: 77,466.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,882.26 : 143,357.04 = 56,135.46 : x
  2. Step 2: Convert to fraction form
    103,882.26/143,357.04 = 56,135.46/x
  3. Step 3: Cross multiply
    103,882.26x = 143,357.04 × 56,135.46
  4. Step 4: Simplify right side
    103,882.26x = 8,047,413,384.64
  5. Step 5: Solve for x
    x = 8,047,413,384.64/103,882.26
  6. Step 6: Final answer
    x = 77,466.68

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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.