Home / 155,840.36-215,059.73-88,772.36

Finding the Fourth Proportional to 155,840.36, 215,059.73 and 88,772.36

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Solution

The fourth proportional to 155,840.36, 215,059.73 and 88,772.36 is: 122,505.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,840.36 : 215,059.73 = 88,772.36 : x
  2. Step 2: Convert to fraction form
    155,840.36/215,059.73 = 88,772.36/x
  3. Step 3: Cross multiply
    155,840.36x = 215,059.73 × 88,772.36
  4. Step 4: Simplify right side
    155,840.36x = 19,091,358,253.90
  5. Step 5: Solve for x
    x = 19,091,358,253.90/155,840.36
  6. Step 6: Final answer
    x = 122,505.87

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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.