Home / 156,018.57-215,293.77-88,041.86

Finding the Fourth Proportional to 156,018.57, 215,293.77 and 88,041.86

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Solution

The fourth proportional to 156,018.57, 215,293.77 and 88,041.86 is: 121,491.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,018.57 : 215,293.77 = 88,041.86 : x
  2. Step 2: Convert to fraction form
    156,018.57/215,293.77 = 88,041.86/x
  3. Step 3: Cross multiply
    156,018.57x = 215,293.77 × 88,041.86
  4. Step 4: Simplify right side
    156,018.57x = 18,954,863,984.09
  5. Step 5: Solve for x
    x = 18,954,863,984.09/156,018.57
  6. Step 6: Final answer
    x = 121,491.08

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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.