Home / 117,785.37-162,529.02-79,627.95

Finding the Fourth Proportional to 117,785.37, 162,529.02 and 79,627.95

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Solution

The fourth proportional to 117,785.37, 162,529.02 and 79,627.95 is: 109,876.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,785.37 : 162,529.02 = 79,627.95 : x
  2. Step 2: Convert to fraction form
    117,785.37/162,529.02 = 79,627.95/x
  3. Step 3: Cross multiply
    117,785.37x = 162,529.02 × 79,627.95
  4. Step 4: Simplify right side
    117,785.37x = 12,941,852,678.11
  5. Step 5: Solve for x
    x = 12,941,852,678.11/117,785.37
  6. Step 6: Final answer
    x = 109,876.57

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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.