Home / 126,319.30-189,437.90-42,056.82

Finding the Fourth Proportional to 126,319.30, 189,437.90 and 42,056.82

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Solution

The fourth proportional to 126,319.30, 189,437.90 and 42,056.82 is: 63,071.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,319.30 : 189,437.90 = 42,056.82 : x
  2. Step 2: Convert to fraction form
    126,319.30/189,437.90 = 42,056.82/x
  3. Step 3: Cross multiply
    126,319.30x = 189,437.90 × 42,056.82
  4. Step 4: Simplify right side
    126,319.30x = 7,967,155,451.19
  5. Step 5: Solve for x
    x = 7,967,155,451.19/126,319.30
  6. Step 6: Final answer
    x = 63,071.56

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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.