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Finding the Fourth Proportional to 127,423.70, 191,134.70 and 43,243.13

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Solution

The fourth proportional to 127,423.70, 191,134.70 and 43,243.13 is: 64,864.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,423.70 : 191,134.70 = 43,243.13 : x
  2. Step 2: Convert to fraction form
    127,423.70/191,134.70 = 43,243.13/x
  3. Step 3: Cross multiply
    127,423.70x = 191,134.70 × 43,243.13
  4. Step 4: Simplify right side
    127,423.70x = 8,265,262,825.79
  5. Step 5: Solve for x
    x = 8,265,262,825.79/127,423.70
  6. Step 6: Final answer
    x = 64,864.41

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1.5x scale

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.