Home / 139,746.61-192,843.88-76,084.21

Finding the Fourth Proportional to 139,746.61, 192,843.88 and 76,084.21

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Solution

The fourth proportional to 139,746.61, 192,843.88 and 76,084.21 is: 104,992.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,746.61 : 192,843.88 = 76,084.21 : x
  2. Step 2: Convert to fraction form
    139,746.61/192,843.88 = 76,084.21/x
  3. Step 3: Cross multiply
    139,746.61x = 192,843.88 × 76,084.21
  4. Step 4: Simplify right side
    139,746.61x = 14,672,374,263.13
  5. Step 5: Solve for x
    x = 14,672,374,263.13/139,746.61
  6. Step 6: Final answer
    x = 104,992.70

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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.