Home / 155,305.36-214,253.94-98,686.36

Finding the Fourth Proportional to 155,305.36, 214,253.94 and 98,686.36

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Solution

The fourth proportional to 155,305.36, 214,253.94 and 98,686.36 is: 136,144.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,305.36 : 214,253.94 = 98,686.36 : x
  2. Step 2: Convert to fraction form
    155,305.36/214,253.94 = 98,686.36/x
  3. Step 3: Cross multiply
    155,305.36x = 214,253.94 × 98,686.36
  4. Step 4: Simplify right side
    155,305.36x = 21,143,941,454.26
  5. Step 5: Solve for x
    x = 21,143,941,454.26/155,305.36
  6. Step 6: Final answer
    x = 136,144.31

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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.