Home / 156,071.46-215,379.36-88,091.30

Finding the Fourth Proportional to 156,071.46, 215,379.36 and 88,091.30

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Solution

The fourth proportional to 156,071.46, 215,379.36 and 88,091.30 is: 121,566.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,071.46 : 215,379.36 = 88,091.30 : x
  2. Step 2: Convert to fraction form
    156,071.46/215,379.36 = 88,091.30/x
  3. Step 3: Cross multiply
    156,071.46x = 215,379.36 × 88,091.30
  4. Step 4: Simplify right side
    156,071.46x = 18,973,047,815.57
  5. Step 5: Solve for x
    x = 18,973,047,815.57/156,071.46
  6. Step 6: Final answer
    x = 121,566.41

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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.