Home / 159,723.15-220,488.80-103,162.11

Finding the Fourth Proportional to 159,723.15, 220,488.80 and 103,162.11

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Solution

The fourth proportional to 159,723.15, 220,488.80 and 103,162.11 is: 142,409.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,723.15 : 220,488.80 = 103,162.11 : x
  2. Step 2: Convert to fraction form
    159,723.15/220,488.80 = 103,162.11/x
  3. Step 3: Cross multiply
    159,723.15x = 220,488.80 × 103,162.11
  4. Step 4: Simplify right side
    159,723.15x = 22,746,089,323.56
  5. Step 5: Solve for x
    x = 22,746,089,323.56/159,723.15
  6. Step 6: Final answer
    x = 142,409.47

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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.