Home / 156,102.28-215,421.78-84,482.26

Finding the Fourth Proportional to 156,102.28, 215,421.78 and 84,482.26

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Solution

The fourth proportional to 156,102.28, 215,421.78 and 84,482.26 is: 116,585.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,102.28 : 215,421.78 = 84,482.26 : x
  2. Step 2: Convert to fraction form
    156,102.28/215,421.78 = 84,482.26/x
  3. Step 3: Cross multiply
    156,102.28x = 215,421.78 × 84,482.26
  4. Step 4: Simplify right side
    156,102.28x = 18,199,318,827.62
  5. Step 5: Solve for x
    x = 18,199,318,827.62/156,102.28
  6. Step 6: Final answer
    x = 116,585.86

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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.