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Finding the Fourth Proportional to 144,930.60, 217,050.30 and 70,972.20

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Solution

The fourth proportional to 144,930.60, 217,050.30 and 70,972.20 is: 106,289.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,930.60 : 217,050.30 = 70,972.20 : x
  2. Step 2: Convert to fraction form
    144,930.60/217,050.30 = 70,972.20/x
  3. Step 3: Cross multiply
    144,930.60x = 217,050.30 × 70,972.20
  4. Step 4: Simplify right side
    144,930.60x = 15,404,537,301.66
  5. Step 5: Solve for x
    x = 15,404,537,301.66/144,930.60
  6. Step 6: Final answer
    x = 106,289.06

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1.5x scale

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.