Home / 105,787.32-145,986.64-58,040.85

Finding the Fourth Proportional to 105,787.32, 145,986.64 and 58,040.85

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Solution

The fourth proportional to 105,787.32, 145,986.64 and 58,040.85 is: 80,096.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,787.32 : 145,986.64 = 58,040.85 : x
  2. Step 2: Convert to fraction form
    105,787.32/145,986.64 = 58,040.85/x
  3. Step 3: Cross multiply
    105,787.32x = 145,986.64 × 58,040.85
  4. Step 4: Simplify right side
    105,787.32x = 8,473,188,674.24
  5. Step 5: Solve for x
    x = 8,473,188,674.24/105,787.32
  6. Step 6: Final answer
    x = 80,096.45

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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.