Home / 156,316.01-215,713.25-88,331.51

Finding the Fourth Proportional to 156,316.01, 215,713.25 and 88,331.51

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Solution

The fourth proportional to 156,316.01, 215,713.25 and 88,331.51 is: 121,895.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,316.01 : 215,713.25 = 88,331.51 : x
  2. Step 2: Convert to fraction form
    156,316.01/215,713.25 = 88,331.51/x
  3. Step 3: Cross multiply
    156,316.01x = 215,713.25 × 88,331.51
  4. Step 4: Simplify right side
    156,316.01x = 19,054,275,579.28
  5. Step 5: Solve for x
    x = 19,054,275,579.28/156,316.01
  6. Step 6: Final answer
    x = 121,895.87

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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.