Home / 118,570.20-176,989.71-103,623

Finding the Fourth Proportional to 118,570.20, 176,989.71 and 103,623

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Solution

The fourth proportional to 118,570.20, 176,989.71 and 103,623 is: 154,678.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,570.20 : 176,989.71 = 103,623 : x
  2. Step 2: Convert to fraction form
    118,570.20/176,989.71 = 103,623/x
  3. Step 3: Cross multiply
    118,570.20x = 176,989.71 × 103,623
  4. Step 4: Simplify right side
    118,570.20x = 18,340,204,719.33
  5. Step 5: Solve for x
    x = 18,340,204,719.33/118,570.20
  6. Step 6: Final answer
    x = 154,678.03

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.