Home / 139,875.05-193,022.15-76,213.32

Finding the Fourth Proportional to 139,875.05, 193,022.15 and 76,213.32

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Solution

The fourth proportional to 139,875.05, 193,022.15 and 76,213.32 is: 105,171.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,875.05 : 193,022.15 = 76,213.32 : x
  2. Step 2: Convert to fraction form
    139,875.05/193,022.15 = 76,213.32/x
  3. Step 3: Cross multiply
    139,875.05x = 193,022.15 × 76,213.32
  4. Step 4: Simplify right side
    139,875.05x = 14,710,858,503.97
  5. Step 5: Solve for x
    x = 14,710,858,503.97/139,875.05
  6. Step 6: Final answer
    x = 105,171.43

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1.5x scale

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.