Home / 104,321.36-143,981.88-61,903.28

Finding the Fourth Proportional to 104,321.36, 143,981.88 and 61,903.28

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Solution

The fourth proportional to 104,321.36, 143,981.88 and 61,903.28 is: 85,437.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,321.36 : 143,981.88 = 61,903.28 : x
  2. Step 2: Convert to fraction form
    104,321.36/143,981.88 = 61,903.28/x
  3. Step 3: Cross multiply
    104,321.36x = 143,981.88 × 61,903.28
  4. Step 4: Simplify right side
    104,321.36x = 8,912,950,632.57
  5. Step 5: Solve for x
    x = 8,912,950,632.57/104,321.36
  6. Step 6: Final answer
    x = 85,437.45

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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.