Home / 112,311,860.23-168,356,187.73-78,161,461.57

Finding the Fourth Proportional to 112,311,860.23, 168,356,187.73 and 78,161,461.57

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Solution

The fourth proportional to 112,311,860.23, 168,356,187.73 and 78,161,461.57 is: 117,164,524.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,311,860.23 : 168,356,187.73 = 78,161,461.57 : x
  2. Step 2: Convert to fraction form
    112,311,860.23/168,356,187.73 = 78,161,461.57/x
  3. Step 3: Cross multiply
    112,311,860.23x = 168,356,187.73 × 78,161,461.57
  4. Step 4: Simplify right side
    112,311,860.23x = 13,158,965,697,330,098
  5. Step 5: Solve for x
    x = 13,158,965,697,330,098/112,311,860.23
  6. Step 6: Final answer
    x = 117,164,524.48

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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.