Home / 155,742.30-233,285.40-126,217.80

Finding the Fourth Proportional to 155,742.30, 233,285.40 and 126,217.80

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Solution

The fourth proportional to 155,742.30, 233,285.40 and 126,217.80 is: 189,060.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,742.30 : 233,285.40 = 126,217.80 : x
  2. Step 2: Convert to fraction form
    155,742.30/233,285.40 = 126,217.80/x
  3. Step 3: Cross multiply
    155,742.30x = 233,285.40 × 126,217.80
  4. Step 4: Simplify right side
    155,742.30x = 29,444,769,960.12
  5. Step 5: Solve for x
    x = 29,444,769,960.12/155,742.30
  6. Step 6: Final answer
    x = 189,060.84

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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.