Home / 215,036.10-322,444.80-126,316.80

Finding the Fourth Proportional to 215,036.10, 322,444.80 and 126,316.80

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Solution

The fourth proportional to 215,036.10, 322,444.80 and 126,316.80 is: 189,410.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,036.10 : 322,444.80 = 126,316.80 : x
  2. Step 2: Convert to fraction form
    215,036.10/322,444.80 = 126,316.80/x
  3. Step 3: Cross multiply
    215,036.10x = 322,444.80 × 126,316.80
  4. Step 4: Simplify right side
    215,036.10x = 40,730,195,312.64
  5. Step 5: Solve for x
    x = 40,730,195,312.64/215,036.10
  6. Step 6: Final answer
    x = 189,410.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.