Home / 139,030.74-191,794.77-82,402.02

Finding the Fourth Proportional to 139,030.74, 191,794.77 and 82,402.02

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Solution

The fourth proportional to 139,030.74, 191,794.77 and 82,402.02 is: 113,674.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,030.74 : 191,794.77 = 82,402.02 : x
  2. Step 2: Convert to fraction form
    139,030.74/191,794.77 = 82,402.02/x
  3. Step 3: Cross multiply
    139,030.74x = 191,794.77 × 82,402.02
  4. Step 4: Simplify right side
    139,030.74x = 15,804,276,473.44
  5. Step 5: Solve for x
    x = 15,804,276,473.44/139,030.74
  6. Step 6: Final answer
    x = 113,674.69

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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.