Home / 156,274.15-215,658.86-84,653.95

Finding the Fourth Proportional to 156,274.15, 215,658.86 and 84,653.95

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Solution

The fourth proportional to 156,274.15, 215,658.86 and 84,653.95 is: 116,822.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,274.15 : 215,658.86 = 84,653.95 : x
  2. Step 2: Convert to fraction form
    156,274.15/215,658.86 = 84,653.95/x
  3. Step 3: Cross multiply
    156,274.15x = 215,658.86 × 84,653.95
  4. Step 4: Simplify right side
    156,274.15x = 18,256,374,351.50
  5. Step 5: Solve for x
    x = 18,256,374,351.50/156,274.15
  6. Step 6: Final answer
    x = 116,822.74

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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.