Home / 170,770.08-235,671.84-99,172.56

Finding the Fourth Proportional to 170,770.08, 235,671.84 and 99,172.56

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Solution

The fourth proportional to 170,770.08, 235,671.84 and 99,172.56 is: 136,863.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,770.08 : 235,671.84 = 99,172.56 : x
  2. Step 2: Convert to fraction form
    170,770.08/235,671.84 = 99,172.56/x
  3. Step 3: Cross multiply
    170,770.08x = 235,671.84 × 99,172.56
  4. Step 4: Simplify right side
    170,770.08x = 23,372,179,692.71
  5. Step 5: Solve for x
    x = 23,372,179,692.71/170,770.08
  6. Step 6: Final answer
    x = 136,863.43

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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.