Home / 156,032.88-215,325.08-84,412.96

Finding the Fourth Proportional to 156,032.88, 215,325.08 and 84,412.96

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Solution

The fourth proportional to 156,032.88, 215,325.08 and 84,412.96 is: 116,489.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,032.88 : 215,325.08 = 84,412.96 : x
  2. Step 2: Convert to fraction form
    156,032.88/215,325.08 = 84,412.96/x
  3. Step 3: Cross multiply
    156,032.88x = 215,325.08 × 84,412.96
  4. Step 4: Simplify right side
    156,032.88x = 18,176,227,365.04
  5. Step 5: Solve for x
    x = 18,176,227,365.04/156,032.88
  6. Step 6: Final answer
    x = 116,489.73

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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.