Home / 155,844.36-215,065.25-88,776.36

Finding the Fourth Proportional to 155,844.36, 215,065.25 and 88,776.36

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Solution

The fourth proportional to 155,844.36, 215,065.25 and 88,776.36 is: 122,511.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,844.36 : 215,065.25 = 88,776.36 : x
  2. Step 2: Convert to fraction form
    155,844.36/215,065.25 = 88,776.36/x
  3. Step 3: Cross multiply
    155,844.36x = 215,065.25 × 88,776.36
  4. Step 4: Simplify right side
    155,844.36x = 19,092,710,057.49
  5. Step 5: Solve for x
    x = 19,092,710,057.49/155,844.36
  6. Step 6: Final answer
    x = 122,511.40

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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.