Home / 132,317.78-198,321.15-102,457.94

Finding the Fourth Proportional to 132,317.78, 198,321.15 and 102,457.94

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Solution

The fourth proportional to 132,317.78, 198,321.15 and 102,457.94 is: 153,566.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,317.78 : 198,321.15 = 102,457.94 : x
  2. Step 2: Convert to fraction form
    132,317.78/198,321.15 = 102,457.94/x
  3. Step 3: Cross multiply
    132,317.78x = 198,321.15 × 102,457.94
  4. Step 4: Simplify right side
    132,317.78x = 20,319,576,487.43
  5. Step 5: Solve for x
    x = 20,319,576,487.43/132,317.78
  6. Step 6: Final answer
    x = 153,566.49

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1.5x scale

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.