Home / 187,767.16-259,129.05-107,220.55

Finding the Fourth Proportional to 187,767.16, 259,129.05 and 107,220.55

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Solution

The fourth proportional to 187,767.16, 259,129.05 and 107,220.55 is: 147,970.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,767.16 : 259,129.05 = 107,220.55 : x
  2. Step 2: Convert to fraction form
    187,767.16/259,129.05 = 107,220.55/x
  3. Step 3: Cross multiply
    187,767.16x = 259,129.05 × 107,220.55
  4. Step 4: Simplify right side
    187,767.16x = 27,783,959,261.98
  5. Step 5: Solve for x
    x = 27,783,959,261.98/187,767.16
  6. Step 6: Final answer
    x = 147,970.28

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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.