Home / 136,821,083.40-188,810,761.45-74,096,671.68

Finding the Fourth Proportional to 136,821,083.40, 188,810,761.45 and 74,096,671.68

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Solution

The fourth proportional to 136,821,083.40, 188,810,761.45 and 74,096,671.68 is: 102,252,143.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,821,083.40 : 188,810,761.45 = 74,096,671.68 : x
  2. Step 2: Convert to fraction form
    136,821,083.40/188,810,761.45 = 74,096,671.68/x
  3. Step 3: Cross multiply
    136,821,083.40x = 188,810,761.45 × 74,096,671.68
  4. Step 4: Simplify right side
    136,821,083.40x = 13,990,249,000,811,452
  5. Step 5: Solve for x
    x = 13,990,249,000,811,452/136,821,083.40
  6. Step 6: Final answer
    x = 102,252,143.11

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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.