Home / 223,971.41-309,058.13-137,916.61

Finding the Fourth Proportional to 223,971.41, 309,058.13 and 137,916.61

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Solution

The fourth proportional to 223,971.41, 309,058.13 and 137,916.61 is: 190,311.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,971.41 : 309,058.13 = 137,916.61 : x
  2. Step 2: Convert to fraction form
    223,971.41/309,058.13 = 137,916.61/x
  3. Step 3: Cross multiply
    223,971.41x = 309,058.13 × 137,916.61
  4. Step 4: Simplify right side
    223,971.41x = 42,624,249,154.69
  5. Step 5: Solve for x
    x = 42,624,249,154.69/223,971.41
  6. Step 6: Final answer
    x = 190,311.11

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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.