Home / 126,815.16-190,259.76-56,678.06

Finding the Fourth Proportional to 126,815.16, 190,259.76 and 56,678.06

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Solution

The fourth proportional to 126,815.16, 190,259.76 and 56,678.06 is: 85,033.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,815.16 : 190,259.76 = 56,678.06 : x
  2. Step 2: Convert to fraction form
    126,815.16/190,259.76 = 56,678.06/x
  3. Step 3: Cross multiply
    126,815.16x = 190,259.76 × 56,678.06
  4. Step 4: Simplify right side
    126,815.16x = 10,783,554,092.87
  5. Step 5: Solve for x
    x = 10,783,554,092.87/126,815.16
  6. Step 6: Final answer
    x = 85,033.64

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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.