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Finding the Fourth Proportional to 159,237.36, 219,741.96 and 87,616.80

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Solution

The fourth proportional to 159,237.36, 219,741.96 and 87,616.80 is: 120,908.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,237.36 : 219,741.96 = 87,616.80 : x
  2. Step 2: Convert to fraction form
    159,237.36/219,741.96 = 87,616.80/x
  3. Step 3: Cross multiply
    159,237.36x = 219,741.96 × 87,616.80
  4. Step 4: Simplify right side
    159,237.36x = 19,253,087,360.93
  5. Step 5: Solve for x
    x = 19,253,087,360.93/159,237.36
  6. Step 6: Final answer
    x = 120,908.10

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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.