Home / 154,549.77-231,824.66-84,390.81

Finding the Fourth Proportional to 154,549.77, 231,824.66 and 84,390.81

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Solution

The fourth proportional to 154,549.77, 231,824.66 and 84,390.81 is: 126,586.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,549.77 : 231,824.66 = 84,390.81 : x
  2. Step 2: Convert to fraction form
    154,549.77/231,824.66 = 84,390.81/x
  3. Step 3: Cross multiply
    154,549.77x = 231,824.66 × 84,390.81
  4. Step 4: Simplify right side
    154,549.77x = 19,563,870,413.42
  5. Step 5: Solve for x
    x = 19,563,870,413.42/154,549.77
  6. Step 6: Final answer
    x = 126,586.22

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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.