Home / 156,281.13-215,667.63-84,662.91

Finding the Fourth Proportional to 156,281.13, 215,667.63 and 84,662.91

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Solution

The fourth proportional to 156,281.13, 215,667.63 and 84,662.91 is: 116,834.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,281.13 : 215,667.63 = 84,662.91 : x
  2. Step 2: Convert to fraction form
    156,281.13/215,667.63 = 84,662.91/x
  3. Step 3: Cross multiply
    156,281.13x = 215,667.63 × 84,662.91
  4. Step 4: Simplify right side
    156,281.13x = 18,259,049,148.60
  5. Step 5: Solve for x
    x = 18,259,049,148.60/156,281.13
  6. Step 6: Final answer
    x = 116,834.64

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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.