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Finding the Fourth Proportional to 142,055.92, 213,118.58 and 47,285.92

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Solution

The fourth proportional to 142,055.92, 213,118.58 and 47,285.92 is: 70,940.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,055.92 : 213,118.58 = 47,285.92 : x
  2. Step 2: Convert to fraction form
    142,055.92/213,118.58 = 47,285.92/x
  3. Step 3: Cross multiply
    142,055.92x = 213,118.58 × 47,285.92
  4. Step 4: Simplify right side
    142,055.92x = 10,077,508,124.39
  5. Step 5: Solve for x
    x = 10,077,508,124.39/142,055.92
  6. Step 6: Final answer
    x = 70,940.43

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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.