Home / 139,543.77-192,547.04-82,194.51

Finding the Fourth Proportional to 139,543.77, 192,547.04 and 82,194.51

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Solution

The fourth proportional to 139,543.77, 192,547.04 and 82,194.51 is: 113,414.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,543.77 : 192,547.04 = 82,194.51 : x
  2. Step 2: Convert to fraction form
    139,543.77/192,547.04 = 82,194.51/x
  3. Step 3: Cross multiply
    139,543.77x = 192,547.04 × 82,194.51
  4. Step 4: Simplify right side
    139,543.77x = 15,826,309,810.24
  5. Step 5: Solve for x
    x = 15,826,309,810.24/139,543.77
  6. Step 6: Final answer
    x = 113,414.66

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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.