Home / 156,135.17-215,465.76-88,151.46

Finding the Fourth Proportional to 156,135.17, 215,465.76 and 88,151.46

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Solution

The fourth proportional to 156,135.17, 215,465.76 and 88,151.46 is: 121,648.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,135.17 : 215,465.76 = 88,151.46 : x
  2. Step 2: Convert to fraction form
    156,135.17/215,465.76 = 88,151.46/x
  3. Step 3: Cross multiply
    156,135.17x = 215,465.76 × 88,151.46
  4. Step 4: Simplify right side
    156,135.17x = 18,993,621,324.01
  5. Step 5: Solve for x
    x = 18,993,621,324.01/156,135.17
  6. Step 6: Final answer
    x = 121,648.58

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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.