Home / 156,111.03-215,433.21-84,491.05

Finding the Fourth Proportional to 156,111.03, 215,433.21 and 84,491.05

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Solution

The fourth proportional to 156,111.03, 215,433.21 and 84,491.05 is: 116,597.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,111.03 : 215,433.21 = 84,491.05 : x
  2. Step 2: Convert to fraction form
    156,111.03/215,433.21 = 84,491.05/x
  3. Step 3: Cross multiply
    156,111.03x = 215,433.21 × 84,491.05
  4. Step 4: Simplify right side
    156,111.03x = 18,202,178,062.34
  5. Step 5: Solve for x
    x = 18,202,178,062.34/156,111.03
  6. Step 6: Final answer
    x = 116,597.64

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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.