Home / 126,908.40-190,228.63-42,588.61

Finding the Fourth Proportional to 126,908.40, 190,228.63 and 42,588.61

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Solution

The fourth proportional to 126,908.40, 190,228.63 and 42,588.61 is: 63,837.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,908.40 : 190,228.63 = 42,588.61 : x
  2. Step 2: Convert to fraction form
    126,908.40/190,228.63 = 42,588.61/x
  3. Step 3: Cross multiply
    126,908.40x = 190,228.63 × 42,588.61
  4. Step 4: Simplify right side
    126,908.40x = 8,101,572,933.90
  5. Step 5: Solve for x
    x = 8,101,572,933.90/126,908.40
  6. Step 6: Final answer
    x = 63,837.96

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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.