Home / 126,463.86-189,710.37-42,235.20

Finding the Fourth Proportional to 126,463.86, 189,710.37 and 42,235.20

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Solution

The fourth proportional to 126,463.86, 189,710.37 and 42,235.20 is: 63,357.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,463.86 : 189,710.37 = 42,235.20 : x
  2. Step 2: Convert to fraction form
    126,463.86/189,710.37 = 42,235.20/x
  3. Step 3: Cross multiply
    126,463.86x = 189,710.37 × 42,235.20
  4. Step 4: Simplify right side
    126,463.86x = 8,012,455,419.02
  5. Step 5: Solve for x
    x = 8,012,455,419.02/126,463.86
  6. Step 6: Final answer
    x = 63,357.67

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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.