Home / 107,108.06-147,792.40-61,787.75

Finding the Fourth Proportional to 107,108.06, 147,792.40 and 61,787.75

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Solution

The fourth proportional to 107,108.06, 147,792.40 and 61,787.75 is: 85,257.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,108.06 : 147,792.40 = 61,787.75 : x
  2. Step 2: Convert to fraction form
    107,108.06/147,792.40 = 61,787.75/x
  3. Step 3: Cross multiply
    107,108.06x = 147,792.40 × 61,787.75
  4. Step 4: Simplify right side
    107,108.06x = 9,131,758,969.67
  5. Step 5: Solve for x
    x = 9,131,758,969.67/107,108.06
  6. Step 6: Final answer
    x = 85,257.44

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1.5x scale

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.