Home / 137,554.74-189,859.28-83,869.34

Finding the Fourth Proportional to 137,554.74, 189,859.28 and 83,869.34

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Solution

The fourth proportional to 137,554.74, 189,859.28 and 83,869.34 is: 115,760.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,554.74 : 189,859.28 = 83,869.34 : x
  2. Step 2: Convert to fraction form
    137,554.74/189,859.28 = 83,869.34/x
  3. Step 3: Cross multiply
    137,554.74x = 189,859.28 × 83,869.34
  4. Step 4: Simplify right side
    137,554.74x = 15,923,371,137.83
  5. Step 5: Solve for x
    x = 15,923,371,137.83/137,554.74
  6. Step 6: Final answer
    x = 115,760.25

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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.