Home / 156,505.41-234,788.55-66,547.09

Finding the Fourth Proportional to 156,505.41, 234,788.55 and 66,547.09

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Solution

The fourth proportional to 156,505.41, 234,788.55 and 66,547.09 is: 99,833.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,505.41 : 234,788.55 = 66,547.09 : x
  2. Step 2: Convert to fraction form
    156,505.41/234,788.55 = 66,547.09/x
  3. Step 3: Cross multiply
    156,505.41x = 234,788.55 × 66,547.09
  4. Step 4: Simplify right side
    156,505.41x = 15,624,494,180.85
  5. Step 5: Solve for x
    x = 15,624,494,180.85/156,505.41
  6. Step 6: Final answer
    x = 99,833.57

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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.