Home / 159,210.23-219,741.50-91,272.81

Finding the Fourth Proportional to 159,210.23, 219,741.50 and 91,272.81

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Solution

The fourth proportional to 159,210.23, 219,741.50 and 91,272.81 is: 125,974.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,210.23 : 219,741.50 = 91,272.81 : x
  2. Step 2: Convert to fraction form
    159,210.23/219,741.50 = 91,272.81/x
  3. Step 3: Cross multiply
    159,210.23x = 219,741.50 × 91,272.81
  4. Step 4: Simplify right side
    159,210.23x = 20,056,424,178.62
  5. Step 5: Solve for x
    x = 20,056,424,178.62/159,210.23
  6. Step 6: Final answer
    x = 125,974.47

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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.