Home / 117,639.89-176,315.28-54,374.44

Finding the Fourth Proportional to 117,639.89, 176,315.28 and 54,374.44

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Solution

The fourth proportional to 117,639.89, 176,315.28 and 54,374.44 is: 81,494.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,639.89 : 176,315.28 = 54,374.44 : x
  2. Step 2: Convert to fraction form
    117,639.89/176,315.28 = 54,374.44/x
  3. Step 3: Cross multiply
    117,639.89x = 176,315.28 × 54,374.44
  4. Step 4: Simplify right side
    117,639.89x = 9,587,044,605.20
  5. Step 5: Solve for x
    x = 9,587,044,605.20/117,639.89
  6. Step 6: Final answer
    x = 81,494.84

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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.