Home / 140,539.32-193,989.42-92,835

Finding the Fourth Proportional to 140,539.32, 193,989.42 and 92,835

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Solution

The fourth proportional to 140,539.32, 193,989.42 and 92,835 is: 128,142.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,539.32 : 193,989.42 = 92,835 : x
  2. Step 2: Convert to fraction form
    140,539.32/193,989.42 = 92,835/x
  3. Step 3: Cross multiply
    140,539.32x = 193,989.42 × 92,835
  4. Step 4: Simplify right side
    140,539.32x = 18,009,007,805.70
  5. Step 5: Solve for x
    x = 18,009,007,805.70/140,539.32
  6. Step 6: Final answer
    x = 128,142.13

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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.