Home / 126,478.08-189,730.08-56,351.52

Finding the Fourth Proportional to 126,478.08, 189,730.08 and 56,351.52

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Solution

The fourth proportional to 126,478.08, 189,730.08 and 56,351.52 is: 84,533.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,478.08 : 189,730.08 = 56,351.52 : x
  2. Step 2: Convert to fraction form
    126,478.08/189,730.08 = 56,351.52/x
  3. Step 3: Cross multiply
    126,478.08x = 189,730.08 × 56,351.52
  4. Step 4: Simplify right side
    126,478.08x = 10,691,578,397.72
  5. Step 5: Solve for x
    x = 10,691,578,397.72/126,478.08
  6. Step 6: Final answer
    x = 84,533.05

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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.