Home / 170,770.32-235,676.52-99,172.80

Finding the Fourth Proportional to 170,770.32, 235,676.52 and 99,172.80

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Solution

The fourth proportional to 170,770.32, 235,676.52 and 99,172.80 is: 136,866.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,770.32 : 235,676.52 = 99,172.80 : x
  2. Step 2: Convert to fraction form
    170,770.32/235,676.52 = 99,172.80/x
  3. Step 3: Cross multiply
    170,770.32x = 235,676.52 × 99,172.80
  4. Step 4: Simplify right side
    170,770.32x = 23,372,700,382.66
  5. Step 5: Solve for x
    x = 23,372,700,382.66/170,770.32
  6. Step 6: Final answer
    x = 136,866.29

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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.