Home / 143,257,659.92-197,555,126.42-90,955,893.90

Finding the Fourth Proportional to 143,257,659.92, 197,555,126.42 and 90,955,893.90

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Solution

The fourth proportional to 143,257,659.92, 197,555,126.42 and 90,955,893.90 is: 125,429,963.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,257,659.92 : 197,555,126.42 = 90,955,893.90 : x
  2. Step 2: Convert to fraction form
    143,257,659.92/197,555,126.42 = 90,955,893.90/x
  3. Step 3: Cross multiply
    143,257,659.92x = 197,555,126.42 × 90,955,893.90
  4. Step 4: Simplify right side
    143,257,659.92x = 17,968,803,117,603,828
  5. Step 5: Solve for x
    x = 17,968,803,117,603,828/143,257,659.92
  6. Step 6: Final answer
    x = 125,429,963.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.