Home / 156,909.85-235,364.78-109,670.65

Finding the Fourth Proportional to 156,909.85, 235,364.78 and 109,670.65

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Solution

The fourth proportional to 156,909.85, 235,364.78 and 109,670.65 is: 164,505.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,909.85 : 235,364.78 = 109,670.65 : x
  2. Step 2: Convert to fraction form
    156,909.85/235,364.78 = 109,670.65/x
  3. Step 3: Cross multiply
    156,909.85x = 235,364.78 × 109,670.65
  4. Step 4: Simplify right side
    156,909.85x = 25,812,608,409.71
  5. Step 5: Solve for x
    x = 25,812,608,409.71/156,909.85
  6. Step 6: Final answer
    x = 164,505.98

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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.