Home / 109,372.40-164,076-38,314.88

Finding the Fourth Proportional to 109,372.40, 164,076 and 38,314.88

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Solution

The fourth proportional to 109,372.40, 164,076 and 38,314.88 is: 57,478.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,372.40 : 164,076 = 38,314.88 : x
  2. Step 2: Convert to fraction form
    109,372.40/164,076 = 38,314.88/x
  3. Step 3: Cross multiply
    109,372.40x = 164,076 × 38,314.88
  4. Step 4: Simplify right side
    109,372.40x = 6,286,552,250.88
  5. Step 5: Solve for x
    x = 6,286,552,250.88/109,372.40
  6. Step 6: Final answer
    x = 57,478.42

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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.