Home / 139,922.68-193,097.40-76,264.60

Finding the Fourth Proportional to 139,922.68, 193,097.40 and 76,264.60

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Solution

The fourth proportional to 139,922.68, 193,097.40 and 76,264.60 is: 105,247.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,922.68 : 193,097.40 = 76,264.60 : x
  2. Step 2: Convert to fraction form
    139,922.68/193,097.40 = 76,264.60/x
  3. Step 3: Cross multiply
    139,922.68x = 193,097.40 × 76,264.60
  4. Step 4: Simplify right side
    139,922.68x = 14,726,495,972.04
  5. Step 5: Solve for x
    x = 14,726,495,972.04/139,922.68
  6. Step 6: Final answer
    x = 105,247.38

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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.