Home / 159,719.40-220,483.62-103,158.36

Finding the Fourth Proportional to 159,719.40, 220,483.62 and 103,158.36

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Solution

The fourth proportional to 159,719.40, 220,483.62 and 103,158.36 is: 142,404.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,719.40 : 220,483.62 = 103,158.36 : x
  2. Step 2: Convert to fraction form
    159,719.40/220,483.62 = 103,158.36/x
  3. Step 3: Cross multiply
    159,719.40x = 220,483.62 × 103,158.36
  4. Step 4: Simplify right side
    159,719.40x = 22,744,728,646.06
  5. Step 5: Solve for x
    x = 22,744,728,646.06/159,719.40
  6. Step 6: Final answer
    x = 142,404.30

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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.