Home / 102,736.08-141,778.89-57,412.53

Finding the Fourth Proportional to 102,736.08, 141,778.89 and 57,412.53

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Solution

The fourth proportional to 102,736.08, 141,778.89 and 57,412.53 is: 79,231.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,736.08 : 141,778.89 = 57,412.53 : x
  2. Step 2: Convert to fraction form
    102,736.08/141,778.89 = 57,412.53/x
  3. Step 3: Cross multiply
    102,736.08x = 141,778.89 × 57,412.53
  4. Step 4: Simplify right side
    102,736.08x = 8,139,884,775.49
  5. Step 5: Solve for x
    x = 8,139,884,775.49/102,736.08
  6. Step 6: Final answer
    x = 79,231.02

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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.