Home / 218,760.54-328,159.32-60,989.13

Finding the Fourth Proportional to 218,760.54, 328,159.32 and 60,989.13

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Solution

The fourth proportional to 218,760.54, 328,159.32 and 60,989.13 is: 91,488.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,760.54 : 328,159.32 = 60,989.13 : x
  2. Step 2: Convert to fraction form
    218,760.54/328,159.32 = 60,989.13/x
  3. Step 3: Cross multiply
    218,760.54x = 328,159.32 × 60,989.13
  4. Step 4: Simplify right side
    218,760.54x = 20,014,151,428.19
  5. Step 5: Solve for x
    x = 20,014,151,428.19/218,760.54
  6. Step 6: Final answer
    x = 91,488.86

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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.