Home / 140,478.45-193,838.51-80,051.64

Finding the Fourth Proportional to 140,478.45, 193,838.51 and 80,051.64

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Solution

The fourth proportional to 140,478.45, 193,838.51 and 80,051.64 is: 110,458.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,478.45 : 193,838.51 = 80,051.64 : x
  2. Step 2: Convert to fraction form
    140,478.45/193,838.51 = 80,051.64/x
  3. Step 3: Cross multiply
    140,478.45x = 193,838.51 × 80,051.64
  4. Step 4: Simplify right side
    140,478.45x = 15,517,090,220.40
  5. Step 5: Solve for x
    x = 15,517,090,220.40/140,478.45
  6. Step 6: Final answer
    x = 110,458.87

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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.