Home / 118,717.20-178,047-39,810.96

Finding the Fourth Proportional to 118,717.20, 178,047 and 39,810.96

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Solution

The fourth proportional to 118,717.20, 178,047 and 39,810.96 is: 59,706.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,717.20 : 178,047 = 39,810.96 : x
  2. Step 2: Convert to fraction form
    118,717.20/178,047 = 39,810.96/x
  3. Step 3: Cross multiply
    118,717.20x = 178,047 × 39,810.96
  4. Step 4: Simplify right side
    118,717.20x = 7,088,221,995.12
  5. Step 5: Solve for x
    x = 7,088,221,995.12/118,717.20
  6. Step 6: Final answer
    x = 59,706.78

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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.