Home / 104,363.04-143,955.45-61,891.50

Finding the Fourth Proportional to 104,363.04, 143,955.45 and 61,891.50

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Solution

The fourth proportional to 104,363.04, 143,955.45 and 61,891.50 is: 85,371.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,363.04 : 143,955.45 = 61,891.50 : x
  2. Step 2: Convert to fraction form
    104,363.04/143,955.45 = 61,891.50/x
  3. Step 3: Cross multiply
    104,363.04x = 143,955.45 × 61,891.50
  4. Step 4: Simplify right side
    104,363.04x = 8,909,618,733.68
  5. Step 5: Solve for x
    x = 8,909,618,733.68/104,363.04
  6. Step 6: Final answer
    x = 85,371.40

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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.