Home / 118,424.12-177,628.89-39,531.74

Finding the Fourth Proportional to 118,424.12, 177,628.89 and 39,531.74

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Solution

The fourth proportional to 118,424.12, 177,628.89 and 39,531.74 is: 59,295.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,424.12 : 177,628.89 = 39,531.74 : x
  2. Step 2: Convert to fraction form
    118,424.12/177,628.89 = 39,531.74/x
  3. Step 3: Cross multiply
    118,424.12x = 177,628.89 × 39,531.74
  4. Step 4: Simplify right side
    118,424.12x = 7,021,979,095.97
  5. Step 5: Solve for x
    x = 7,021,979,095.97/118,424.12
  6. Step 6: Final answer
    x = 59,295.18

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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.