Home / 101,119.05-139,572.05-58,691.25

Finding the Fourth Proportional to 101,119.05, 139,572.05 and 58,691.25

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Solution

The fourth proportional to 101,119.05, 139,572.05 and 58,691.25 is: 81,010.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,119.05 : 139,572.05 = 58,691.25 : x
  2. Step 2: Convert to fraction form
    101,119.05/139,572.05 = 58,691.25/x
  3. Step 3: Cross multiply
    101,119.05x = 139,572.05 × 58,691.25
  4. Step 4: Simplify right side
    101,119.05x = 8,191,657,786.11
  5. Step 5: Solve for x
    x = 8,191,657,786.11/101,119.05
  6. Step 6: Final answer
    x = 81,010.04

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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.