Home / 156,111.16-215,433.70-84,491.80

Finding the Fourth Proportional to 156,111.16, 215,433.70 and 84,491.80

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Solution

The fourth proportional to 156,111.16, 215,433.70 and 84,491.80 is: 116,598.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,111.16 : 215,433.70 = 84,491.80 : x
  2. Step 2: Convert to fraction form
    156,111.16/215,433.70 = 84,491.80/x
  3. Step 3: Cross multiply
    156,111.16x = 215,433.70 × 84,491.80
  4. Step 4: Simplify right side
    156,111.16x = 18,202,381,093.66
  5. Step 5: Solve for x
    x = 18,202,381,093.66/156,111.16
  6. Step 6: Final answer
    x = 116,598.85

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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.