Home / 159,534.37-220,158.89-87,916.96

Finding the Fourth Proportional to 159,534.37, 220,158.89 and 87,916.96

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Solution

The fourth proportional to 159,534.37, 220,158.89 and 87,916.96 is: 121,326.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,534.37 : 220,158.89 = 87,916.96 : x
  2. Step 2: Convert to fraction form
    159,534.37/220,158.89 = 87,916.96/x
  3. Step 3: Cross multiply
    159,534.37x = 220,158.89 × 87,916.96
  4. Step 4: Simplify right side
    159,534.37x = 19,355,700,325.77
  5. Step 5: Solve for x
    x = 19,355,700,325.77/159,534.37
  6. Step 6: Final answer
    x = 121,326.21

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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.