Home / 124,314.09-186,489.51-45,409.87

Finding the Fourth Proportional to 124,314.09, 186,489.51 and 45,409.87

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Solution

The fourth proportional to 124,314.09, 186,489.51 and 45,409.87 is: 68,121.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,314.09 : 186,489.51 = 45,409.87 : x
  2. Step 2: Convert to fraction form
    124,314.09/186,489.51 = 45,409.87/x
  3. Step 3: Cross multiply
    124,314.09x = 186,489.51 × 45,409.87
  4. Step 4: Simplify right side
    124,314.09x = 8,468,464,405.46
  5. Step 5: Solve for x
    x = 8,468,464,405.46/124,314.09
  6. Step 6: Final answer
    x = 68,121.52

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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.