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Finding the Fourth Proportional to 126,502.60, 189,600.30 and 56,307.40

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Solution

The fourth proportional to 126,502.60, 189,600.30 and 56,307.40 is: 84,392.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,502.60 : 189,600.30 = 56,307.40 : x
  2. Step 2: Convert to fraction form
    126,502.60/189,600.30 = 56,307.40/x
  3. Step 3: Cross multiply
    126,502.60x = 189,600.30 × 56,307.40
  4. Step 4: Simplify right side
    126,502.60x = 10,675,899,932.22
  5. Step 5: Solve for x
    x = 10,675,899,932.22/126,502.60
  6. Step 6: Final answer
    x = 84,392.73

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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.