Home / 142,335.12-213,330.04-104,544.78

Finding the Fourth Proportional to 142,335.12, 213,330.04 and 104,544.78

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Solution

The fourth proportional to 142,335.12, 213,330.04 and 104,544.78 is: 156,690.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,335.12 : 213,330.04 = 104,544.78 : x
  2. Step 2: Convert to fraction form
    142,335.12/213,330.04 = 104,544.78/x
  3. Step 3: Cross multiply
    142,335.12x = 213,330.04 × 104,544.78
  4. Step 4: Simplify right side
    142,335.12x = 22,302,542,099.19
  5. Step 5: Solve for x
    x = 22,302,542,099.19/142,335.12
  6. Step 6: Final answer
    x = 156,690.37

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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.