Home / 126,056.60-189,072.10-42,949.40

Finding the Fourth Proportional to 126,056.60, 189,072.10 and 42,949.40

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Solution

The fourth proportional to 126,056.60, 189,072.10 and 42,949.40 is: 64,419.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,056.60 : 189,072.10 = 42,949.40 : x
  2. Step 2: Convert to fraction form
    126,056.60/189,072.10 = 42,949.40/x
  3. Step 3: Cross multiply
    126,056.60x = 189,072.10 × 42,949.40
  4. Step 4: Simplify right side
    126,056.60x = 8,120,533,251.74
  5. Step 5: Solve for x
    x = 8,120,533,251.74/126,056.60
  6. Step 6: Final answer
    x = 64,419.74

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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.