Home / 135,858.03-187,475.41-75,428.66

Finding the Fourth Proportional to 135,858.03, 187,475.41 and 75,428.66

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Solution

The fourth proportional to 135,858.03, 187,475.41 and 75,428.66 is: 104,086.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,858.03 : 187,475.41 = 75,428.66 : x
  2. Step 2: Convert to fraction form
    135,858.03/187,475.41 = 75,428.66/x
  3. Step 3: Cross multiply
    135,858.03x = 187,475.41 × 75,428.66
  4. Step 4: Simplify right side
    135,858.03x = 14,141,018,994.95
  5. Step 5: Solve for x
    x = 14,141,018,994.95/135,858.03
  6. Step 6: Final answer
    x = 104,086.74

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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.