Home / 187,671.72-259,005.60-107,111.45

Finding the Fourth Proportional to 187,671.72, 259,005.60 and 107,111.45

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Solution

The fourth proportional to 187,671.72, 259,005.60 and 107,111.45 is: 147,824.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,671.72 : 259,005.60 = 107,111.45 : x
  2. Step 2: Convert to fraction form
    187,671.72/259,005.60 = 107,111.45/x
  3. Step 3: Cross multiply
    187,671.72x = 259,005.60 × 107,111.45
  4. Step 4: Simplify right side
    187,671.72x = 27,742,466,021.63
  5. Step 5: Solve for x
    x = 27,742,466,021.63/187,671.72
  6. Step 6: Final answer
    x = 147,824.43

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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.