Home / 144,886.70-217,438.05-74,729.90

Finding the Fourth Proportional to 144,886.70, 217,438.05 and 74,729.90

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Solution

The fourth proportional to 144,886.70, 217,438.05 and 74,729.90 is: 112,150.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,886.70 : 217,438.05 = 74,729.90 : x
  2. Step 2: Convert to fraction form
    144,886.70/217,438.05 = 74,729.90/x
  3. Step 3: Cross multiply
    144,886.70x = 217,438.05 × 74,729.90
  4. Step 4: Simplify right side
    144,886.70x = 16,249,123,732.70
  5. Step 5: Solve for x
    x = 16,249,123,732.70/144,886.70
  6. Step 6: Final answer
    x = 112,150.55

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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.