Home / 159,534.07-220,158.50-87,916.66

Finding the Fourth Proportional to 159,534.07, 220,158.50 and 87,916.66

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Solution

The fourth proportional to 159,534.07, 220,158.50 and 87,916.66 is: 121,325.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,534.07 : 220,158.50 = 87,916.66 : x
  2. Step 2: Convert to fraction form
    159,534.07/220,158.50 = 87,916.66/x
  3. Step 3: Cross multiply
    159,534.07x = 220,158.50 × 87,916.66
  4. Step 4: Simplify right side
    159,534.07x = 19,355,599,000.63
  5. Step 5: Solve for x
    x = 19,355,599,000.63/159,534.07
  6. Step 6: Final answer
    x = 121,325.80

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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.