Home / 139,752,129.88-192,872,290.08-84,015,594.64

Finding the Fourth Proportional to 139,752,129.88, 192,872,290.08 and 84,015,594.64

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Solution

The fourth proportional to 139,752,129.88, 192,872,290.08 and 84,015,594.64 is: 115,950,147.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,752,129.88 : 192,872,290.08 = 84,015,594.64 : x
  2. Step 2: Convert to fraction form
    139,752,129.88/192,872,290.08 = 84,015,594.64/x
  3. Step 3: Cross multiply
    139,752,129.88x = 192,872,290.08 × 84,015,594.64
  4. Step 4: Simplify right side
    139,752,129.88x = 16,204,280,140,649,774
  5. Step 5: Solve for x
    x = 16,204,280,140,649,774/139,752,129.88
  6. Step 6: Final answer
    x = 115,950,147.98

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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.