Home / 156,744.70-235,246.65-72,634.30

Finding the Fourth Proportional to 156,744.70, 235,246.65 and 72,634.30

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Solution

The fourth proportional to 156,744.70, 235,246.65 and 72,634.30 is: 109,011.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,744.70 : 235,246.65 = 72,634.30 : x
  2. Step 2: Convert to fraction form
    156,744.70/235,246.65 = 72,634.30/x
  3. Step 3: Cross multiply
    156,744.70x = 235,246.65 × 72,634.30
  4. Step 4: Simplify right side
    156,744.70x = 17,086,975,750.10
  5. Step 5: Solve for x
    x = 17,086,975,750.10/156,744.70
  6. Step 6: Final answer
    x = 109,011.51

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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.