Home / 126,270.04-189,435.90-42,030.04

Finding the Fourth Proportional to 126,270.04, 189,435.90 and 42,030.04

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Solution

The fourth proportional to 126,270.04, 189,435.90 and 42,030.04 is: 63,055.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,270.04 : 189,435.90 = 42,030.04 : x
  2. Step 2: Convert to fraction form
    126,270.04/189,435.90 = 42,030.04/x
  3. Step 3: Cross multiply
    126,270.04x = 189,435.90 × 42,030.04
  4. Step 4: Simplify right side
    126,270.04x = 7,961,998,454.44
  5. Step 5: Solve for x
    x = 7,961,998,454.44/126,270.04
  6. Step 6: Final answer
    x = 63,055.33

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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.