Home / 140,085.28-193,318.14-76,424.41

Finding the Fourth Proportional to 140,085.28, 193,318.14 and 76,424.41

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Solution

The fourth proportional to 140,085.28, 193,318.14 and 76,424.41 is: 105,465.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,085.28 : 193,318.14 = 76,424.41 : x
  2. Step 2: Convert to fraction form
    140,085.28/193,318.14 = 76,424.41/x
  3. Step 3: Cross multiply
    140,085.28x = 193,318.14 × 76,424.41
  4. Step 4: Simplify right side
    140,085.28x = 14,774,224,791.80
  5. Step 5: Solve for x
    x = 14,774,224,791.80/140,085.28
  6. Step 6: Final answer
    x = 105,465.93

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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.