Home / 156,389.01-215,817.19-84,768.71

Finding the Fourth Proportional to 156,389.01, 215,817.19 and 84,768.71

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Solution

The fourth proportional to 156,389.01, 215,817.19 and 84,768.71 is: 116,981.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,389.01 : 215,817.19 = 84,768.71 : x
  2. Step 2: Convert to fraction form
    156,389.01/215,817.19 = 84,768.71/x
  3. Step 3: Cross multiply
    156,389.01x = 215,817.19 × 84,768.71
  4. Step 4: Simplify right side
    156,389.01x = 18,294,543,977.94
  5. Step 5: Solve for x
    x = 18,294,543,977.94/156,389.01
  6. Step 6: Final answer
    x = 116,981.01

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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.