Home / 155,363.19-214,395.03-91,721.49

Finding the Fourth Proportional to 155,363.19, 214,395.03 and 91,721.49

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Solution

The fourth proportional to 155,363.19, 214,395.03 and 91,721.49 is: 126,572.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,363.19 : 214,395.03 = 91,721.49 : x
  2. Step 2: Convert to fraction form
    155,363.19/214,395.03 = 91,721.49/x
  3. Step 3: Cross multiply
    155,363.19x = 214,395.03 × 91,721.49
  4. Step 4: Simplify right side
    155,363.19x = 19,664,631,600.19
  5. Step 5: Solve for x
    x = 19,664,631,600.19/155,363.19
  6. Step 6: Final answer
    x = 126,572.01

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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.