Home / 100,760.16-151,159.68-56,436.96

Finding the Fourth Proportional to 100,760.16, 151,159.68 and 56,436.96

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Solution

The fourth proportional to 100,760.16, 151,159.68 and 56,436.96 is: 84,666.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,760.16 : 151,159.68 = 56,436.96 : x
  2. Step 2: Convert to fraction form
    100,760.16/151,159.68 = 56,436.96/x
  3. Step 3: Cross multiply
    100,760.16x = 151,159.68 × 56,436.96
  4. Step 4: Simplify right side
    100,760.16x = 8,530,992,813.77
  5. Step 5: Solve for x
    x = 8,530,992,813.77/100,760.16
  6. Step 6: Final answer
    x = 84,666.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.