Home / 142,297.43-196,364.93-81,887.45

Finding the Fourth Proportional to 142,297.43, 196,364.93 and 81,887.45

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Solution

The fourth proportional to 142,297.43, 196,364.93 and 81,887.45 is: 113,001.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,297.43 : 196,364.93 = 81,887.45 : x
  2. Step 2: Convert to fraction form
    142,297.43/196,364.93 = 81,887.45/x
  3. Step 3: Cross multiply
    142,297.43x = 196,364.93 × 81,887.45
  4. Step 4: Simplify right side
    142,297.43x = 16,079,821,995.87
  5. Step 5: Solve for x
    x = 16,079,821,995.87/142,297.43
  6. Step 6: Final answer
    x = 113,001.50

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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.