Home / 140,051.47-193,273.34-76,389.28

Finding the Fourth Proportional to 140,051.47, 193,273.34 and 76,389.28

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Solution

The fourth proportional to 140,051.47, 193,273.34 and 76,389.28 is: 105,418.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,051.47 : 193,273.34 = 76,389.28 : x
  2. Step 2: Convert to fraction form
    140,051.47/193,273.34 = 76,389.28/x
  3. Step 3: Cross multiply
    140,051.47x = 193,273.34 × 76,389.28
  4. Step 4: Simplify right side
    140,051.47x = 14,764,011,285.80
  5. Step 5: Solve for x
    x = 14,764,011,285.80/140,051.47
  6. Step 6: Final answer
    x = 105,418.47

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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.