Home / 112,268,512.80-168,402,769.20-82,035,424.80

Finding the Fourth Proportional to 112,268,512.80, 168,402,769.20 and 82,035,424.80

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Solution

The fourth proportional to 112,268,512.80, 168,402,769.20 and 82,035,424.80 is: 123,053,137.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,268,512.80 : 168,402,769.20 = 82,035,424.80 : x
  2. Step 2: Convert to fraction form
    112,268,512.80/168,402,769.20 = 82,035,424.80/x
  3. Step 3: Cross multiply
    112,268,512.80x = 168,402,769.20 × 82,035,424.80
  4. Step 4: Simplify right side
    112,268,512.80x = 13,814,992,708,818,354
  5. Step 5: Solve for x
    x = 13,814,992,708,818,354/112,268,512.80
  6. Step 6: Final answer
    x = 123,053,137.20

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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.