Home / 156,072.09-215,378.58-88,111.11

Finding the Fourth Proportional to 156,072.09, 215,378.58 and 88,111.11

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Solution

The fourth proportional to 156,072.09, 215,378.58 and 88,111.11 is: 121,592.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,072.09 : 215,378.58 = 88,111.11 : x
  2. Step 2: Convert to fraction form
    156,072.09/215,378.58 = 88,111.11/x
  3. Step 3: Cross multiply
    156,072.09x = 215,378.58 × 88,111.11
  4. Step 4: Simplify right side
    156,072.09x = 18,977,245,754.02
  5. Step 5: Solve for x
    x = 18,977,245,754.02/156,072.09
  6. Step 6: Final answer
    x = 121,592.82

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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.