Home / 156,036.88-215,330.60-84,416.96

Finding the Fourth Proportional to 156,036.88, 215,330.60 and 84,416.96

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Solution

The fourth proportional to 156,036.88, 215,330.60 and 84,416.96 is: 116,495.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,036.88 : 215,330.60 = 84,416.96 : x
  2. Step 2: Convert to fraction form
    156,036.88/215,330.60 = 84,416.96/x
  3. Step 3: Cross multiply
    156,036.88x = 215,330.60 × 84,416.96
  4. Step 4: Simplify right side
    156,036.88x = 18,177,554,646.98
  5. Step 5: Solve for x
    x = 18,177,554,646.98/156,036.88
  6. Step 6: Final answer
    x = 116,495.25

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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.