Home / 153,723.20-212,105.76-93,325.64

Finding the Fourth Proportional to 153,723.20, 212,105.76 and 93,325.64

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Solution

The fourth proportional to 153,723.20, 212,105.76 and 93,325.64 is: 128,769.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,723.20 : 212,105.76 = 93,325.64 : x
  2. Step 2: Convert to fraction form
    153,723.20/212,105.76 = 93,325.64/x
  3. Step 3: Cross multiply
    153,723.20x = 212,105.76 × 93,325.64
  4. Step 4: Simplify right side
    153,723.20x = 19,794,905,799.69
  5. Step 5: Solve for x
    x = 19,794,905,799.69/153,723.20
  6. Step 6: Final answer
    x = 128,769.80

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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.