Home / 135,170.34-186,518.79-74,732.82

Finding the Fourth Proportional to 135,170.34, 186,518.79 and 74,732.82

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Solution

The fourth proportional to 135,170.34, 186,518.79 and 74,732.82 is: 103,122.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,170.34 : 186,518.79 = 74,732.82 : x
  2. Step 2: Convert to fraction form
    135,170.34/186,518.79 = 74,732.82/x
  3. Step 3: Cross multiply
    135,170.34x = 186,518.79 × 74,732.82
  4. Step 4: Simplify right side
    135,170.34x = 13,939,075,159.69
  5. Step 5: Solve for x
    x = 13,939,075,159.69/135,170.34
  6. Step 6: Final answer
    x = 103,122.29

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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.