Home / 153,722.20-212,104.38-93,324.64

Finding the Fourth Proportional to 153,722.20, 212,104.38 and 93,324.64

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Solution

The fourth proportional to 153,722.20, 212,104.38 and 93,324.64 is: 128,768.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,722.20 : 212,104.38 = 93,324.64 : x
  2. Step 2: Convert to fraction form
    153,722.20/212,104.38 = 93,324.64/x
  3. Step 3: Cross multiply
    153,722.20x = 212,104.38 × 93,324.64
  4. Step 4: Simplify right side
    153,722.20x = 19,794,564,905.92
  5. Step 5: Solve for x
    x = 19,794,564,905.92/153,722.20
  6. Step 6: Final answer
    x = 128,768.42

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1.5x scale

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.