Home / 126,411.10-189,617.40-42,171.06

Finding the Fourth Proportional to 126,411.10, 189,617.40 and 42,171.06

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Solution

The fourth proportional to 126,411.10, 189,617.40 and 42,171.06 is: 63,256.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,411.10 : 189,617.40 = 42,171.06 : x
  2. Step 2: Convert to fraction form
    126,411.10/189,617.40 = 42,171.06/x
  3. Step 3: Cross multiply
    126,411.10x = 189,617.40 × 42,171.06
  4. Step 4: Simplify right side
    126,411.10x = 7,996,366,752.44
  5. Step 5: Solve for x
    x = 7,996,366,752.44/126,411.10
  6. Step 6: Final answer
    x = 63,256.84

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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.