Home / 102,645.59-141,633.63-57,321.90

Finding the Fourth Proportional to 102,645.59, 141,633.63 and 57,321.90

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Solution

The fourth proportional to 102,645.59, 141,633.63 and 57,321.90 is: 79,094.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,645.59 : 141,633.63 = 57,321.90 : x
  2. Step 2: Convert to fraction form
    102,645.59/141,633.63 = 57,321.90/x
  3. Step 3: Cross multiply
    102,645.59x = 141,633.63 × 57,321.90
  4. Step 4: Simplify right side
    102,645.59x = 8,118,708,775.50
  5. Step 5: Solve for x
    x = 8,118,708,775.50/102,645.59
  6. Step 6: Final answer
    x = 79,094.57

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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.