Home / 113,731.86-156,955.42-63,421.14

Finding the Fourth Proportional to 113,731.86, 156,955.42 and 63,421.14

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Solution

The fourth proportional to 113,731.86, 156,955.42 and 63,421.14 is: 87,524.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,731.86 : 156,955.42 = 63,421.14 : x
  2. Step 2: Convert to fraction form
    113,731.86/156,955.42 = 63,421.14/x
  3. Step 3: Cross multiply
    113,731.86x = 156,955.42 × 63,421.14
  4. Step 4: Simplify right side
    113,731.86x = 9,954,291,665.58
  5. Step 5: Solve for x
    x = 9,954,291,665.58/113,731.86
  6. Step 6: Final answer
    x = 87,524.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.