Home / 158,816.17-219,103.80-90,796.60

Finding the Fourth Proportional to 158,816.17, 219,103.80 and 90,796.60

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Solution

The fourth proportional to 158,816.17, 219,103.80 and 90,796.60 is: 125,263.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,816.17 : 219,103.80 = 90,796.60 : x
  2. Step 2: Convert to fraction form
    158,816.17/219,103.80 = 90,796.60/x
  3. Step 3: Cross multiply
    158,816.17x = 219,103.80 × 90,796.60
  4. Step 4: Simplify right side
    158,816.17x = 19,893,878,991.56
  5. Step 5: Solve for x
    x = 19,893,878,991.56/158,816.17
  6. Step 6: Final answer
    x = 125,263.56

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1.5x scale

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.