Home / 126,838.64-190,279.81-42,606.90

Finding the Fourth Proportional to 126,838.64, 190,279.81 and 42,606.90

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Solution

The fourth proportional to 126,838.64, 190,279.81 and 42,606.90 is: 63,917.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,838.64 : 190,279.81 = 42,606.90 : x
  2. Step 2: Convert to fraction form
    126,838.64/190,279.81 = 42,606.90/x
  3. Step 3: Cross multiply
    126,838.64x = 190,279.81 × 42,606.90
  4. Step 4: Simplify right side
    126,838.64x = 8,107,232,836.69
  5. Step 5: Solve for x
    x = 8,107,232,836.69/126,838.64
  6. Step 6: Final answer
    x = 63,917.69

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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.