Home / 142,249.32-196,296.48-81,810.36

Finding the Fourth Proportional to 142,249.32, 196,296.48 and 81,810.36

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Solution

The fourth proportional to 142,249.32, 196,296.48 and 81,810.36 is: 112,893.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,249.32 : 196,296.48 = 81,810.36 : x
  2. Step 2: Convert to fraction form
    142,249.32/196,296.48 = 81,810.36/x
  3. Step 3: Cross multiply
    142,249.32x = 196,296.48 × 81,810.36
  4. Step 4: Simplify right side
    142,249.32x = 16,059,085,695.53
  5. Step 5: Solve for x
    x = 16,059,085,695.53/142,249.32
  6. Step 6: Final answer
    x = 112,893.94

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1.5x scale

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.