Home / 128,194.20-176,904.54-70,048.62

Finding the Fourth Proportional to 128,194.20, 176,904.54 and 70,048.62

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Solution

The fourth proportional to 128,194.20, 176,904.54 and 70,048.62 is: 96,665.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,194.20 : 176,904.54 = 70,048.62 : x
  2. Step 2: Convert to fraction form
    128,194.20/176,904.54 = 70,048.62/x
  3. Step 3: Cross multiply
    128,194.20x = 176,904.54 × 70,048.62
  4. Step 4: Simplify right side
    128,194.20x = 12,391,918,898.73
  5. Step 5: Solve for x
    x = 12,391,918,898.73/128,194.20
  6. Step 6: Final answer
    x = 96,665.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.