Home / 139,905.09-193,063.41-76,241.52

Finding the Fourth Proportional to 139,905.09, 193,063.41 and 76,241.52

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Solution

The fourth proportional to 139,905.09, 193,063.41 and 76,241.52 is: 105,210.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,905.09 : 193,063.41 = 76,241.52 : x
  2. Step 2: Convert to fraction form
    139,905.09/193,063.41 = 76,241.52/x
  3. Step 3: Cross multiply
    139,905.09x = 193,063.41 × 76,241.52
  4. Step 4: Simplify right side
    139,905.09x = 14,719,447,834.78
  5. Step 5: Solve for x
    x = 14,719,447,834.78/139,905.09
  6. Step 6: Final answer
    x = 105,210.24

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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.