Home / 156,965.85-235,448.78-109,726.65

Finding the Fourth Proportional to 156,965.85, 235,448.78 and 109,726.65

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Solution

The fourth proportional to 156,965.85, 235,448.78 and 109,726.65 is: 164,589.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,965.85 : 235,448.78 = 109,726.65 : x
  2. Step 2: Convert to fraction form
    156,965.85/235,448.78 = 109,726.65/x
  3. Step 3: Cross multiply
    156,965.85x = 235,448.78 × 109,726.65
  4. Step 4: Simplify right side
    156,965.85x = 25,835,005,875.99
  5. Step 5: Solve for x
    x = 25,835,005,875.99/156,965.85
  6. Step 6: Final answer
    x = 164,589.98

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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.