Home / 120,348.54-166,156.62-77,347.26

Finding the Fourth Proportional to 120,348.54, 166,156.62 and 77,347.26

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Solution

The fourth proportional to 120,348.54, 166,156.62 and 77,347.26 is: 106,787.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,348.54 : 166,156.62 = 77,347.26 : x
  2. Step 2: Convert to fraction form
    120,348.54/166,156.62 = 77,347.26/x
  3. Step 3: Cross multiply
    120,348.54x = 166,156.62 × 77,347.26
  4. Step 4: Simplify right side
    120,348.54x = 12,851,759,287.86
  5. Step 5: Solve for x
    x = 12,851,759,287.86/120,348.54
  6. Step 6: Final answer
    x = 106,787.83

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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.