Home / 187,783.37-258,999.69-130,422.76

Finding the Fourth Proportional to 187,783.37, 258,999.69 and 130,422.76

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Solution

The fourth proportional to 187,783.37, 258,999.69 and 130,422.76 is: 179,885.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,783.37 : 258,999.69 = 130,422.76 : x
  2. Step 2: Convert to fraction form
    187,783.37/258,999.69 = 130,422.76/x
  3. Step 3: Cross multiply
    187,783.37x = 258,999.69 × 130,422.76
  4. Step 4: Simplify right side
    187,783.37x = 33,779,454,408.94
  5. Step 5: Solve for x
    x = 33,779,454,408.94/187,783.37
  6. Step 6: Final answer
    x = 179,885.23

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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.