Home / 140,787.76-194,291.95-77,125.54

Finding the Fourth Proportional to 140,787.76, 194,291.95 and 77,125.54

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Solution

The fourth proportional to 140,787.76, 194,291.95 and 77,125.54 is: 106,435.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,787.76 : 194,291.95 = 77,125.54 : x
  2. Step 2: Convert to fraction form
    140,787.76/194,291.95 = 77,125.54/x
  3. Step 3: Cross multiply
    140,787.76x = 194,291.95 × 77,125.54
  4. Step 4: Simplify right side
    140,787.76x = 14,984,871,561.40
  5. Step 5: Solve for x
    x = 14,984,871,561.40/140,787.76
  6. Step 6: Final answer
    x = 106,435.90

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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.