Home / 112,333,725.20-168,127,339.80-81,540,765.20

Finding the Fourth Proportional to 112,333,725.20, 168,127,339.80 and 81,540,765.20

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Solution

The fourth proportional to 112,333,725.20, 168,127,339.80 and 81,540,765.20 is: 122,040,214.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,333,725.20 : 168,127,339.80 = 81,540,765.20 : x
  2. Step 2: Convert to fraction form
    112,333,725.20/168,127,339.80 = 81,540,765.20/x
  3. Step 3: Cross multiply
    112,333,725.20x = 168,127,339.80 × 81,540,765.20
  4. Step 4: Simplify right side
    112,333,725.20x = 13,709,231,938,332,416
  5. Step 5: Solve for x
    x = 13,709,231,938,332,416/112,333,725.20
  6. Step 6: Final answer
    x = 122,040,214.67

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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.