Home / 126,838.81-190,262.85-42,601.75

Finding the Fourth Proportional to 126,838.81, 190,262.85 and 42,601.75

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Solution

The fourth proportional to 126,838.81, 190,262.85 and 42,601.75 is: 63,904.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,838.81 : 190,262.85 = 42,601.75 : x
  2. Step 2: Convert to fraction form
    126,838.81/190,262.85 = 42,601.75/x
  3. Step 3: Cross multiply
    126,838.81x = 190,262.85 × 42,601.75
  4. Step 4: Simplify right side
    126,838.81x = 8,105,529,734.57
  5. Step 5: Solve for x
    x = 8,105,529,734.57/126,838.81
  6. Step 6: Final answer
    x = 63,904.18

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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.