Home / 225,172.62-310,816.35-129,717.36

Finding the Fourth Proportional to 225,172.62, 310,816.35 and 129,717.36

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Solution

The fourth proportional to 225,172.62, 310,816.35 and 129,717.36 is: 179,054.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,172.62 : 310,816.35 = 129,717.36 : x
  2. Step 2: Convert to fraction form
    225,172.62/310,816.35 = 129,717.36/x
  3. Step 3: Cross multiply
    225,172.62x = 310,816.35 × 129,717.36
  4. Step 4: Simplify right side
    225,172.62x = 40,318,276,366.84
  5. Step 5: Solve for x
    x = 40,318,276,366.84/225,172.62
  6. Step 6: Final answer
    x = 179,054.97

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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.