Home / 159,341.81-219,893.16-87,723.02

Finding the Fourth Proportional to 159,341.81, 219,893.16 and 87,723.02

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Solution

The fourth proportional to 159,341.81, 219,893.16 and 87,723.02 is: 121,058.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,341.81 : 219,893.16 = 87,723.02 : x
  2. Step 2: Convert to fraction form
    159,341.81/219,893.16 = 87,723.02/x
  3. Step 3: Cross multiply
    159,341.81x = 219,893.16 × 87,723.02
  4. Step 4: Simplify right side
    159,341.81x = 19,289,690,973.08
  5. Step 5: Solve for x
    x = 19,289,690,973.08/159,341.81
  6. Step 6: Final answer
    x = 121,058.57

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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.