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Finding the Fourth Proportional to 126,163, 189,244.53 and 51,323.86

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Solution

The fourth proportional to 126,163, 189,244.53 and 51,323.86 is: 76,985.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,163 : 189,244.53 = 51,323.86 : x
  2. Step 2: Convert to fraction form
    126,163/189,244.53 = 51,323.86/x
  3. Step 3: Cross multiply
    126,163x = 189,244.53 × 51,323.86
  4. Step 4: Simplify right side
    126,163x = 9,712,759,763.49
  5. Step 5: Solve for x
    x = 9,712,759,763.49/126,163
  6. Step 6: Final answer
    x = 76,985.80

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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.