Home / 104,172.18-143,663.12-68,348.58

Finding the Fourth Proportional to 104,172.18, 143,663.12 and 68,348.58

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Solution

The fourth proportional to 104,172.18, 143,663.12 and 68,348.58 is: 94,259.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,172.18 : 143,663.12 = 68,348.58 : x
  2. Step 2: Convert to fraction form
    104,172.18/143,663.12 = 68,348.58/x
  3. Step 3: Cross multiply
    104,172.18x = 143,663.12 × 68,348.58
  4. Step 4: Simplify right side
    104,172.18x = 9,819,170,250.37
  5. Step 5: Solve for x
    x = 9,819,170,250.37/104,172.18
  6. Step 6: Final answer
    x = 94,259.05

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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.