Home / 156,038.34-215,338.44-88,071.85

Finding the Fourth Proportional to 156,038.34, 215,338.44 and 88,071.85

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Solution

The fourth proportional to 156,038.34, 215,338.44 and 88,071.85 is: 121,542.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,038.34 : 215,338.44 = 88,071.85 : x
  2. Step 2: Convert to fraction form
    156,038.34/215,338.44 = 88,071.85/x
  3. Step 3: Cross multiply
    156,038.34x = 215,338.44 × 88,071.85
  4. Step 4: Simplify right side
    156,038.34x = 18,965,254,786.91
  5. Step 5: Solve for x
    x = 18,965,254,786.91/156,038.34
  6. Step 6: Final answer
    x = 121,542.28

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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.