Home / 134,620.08-185,774.78-74,190.77

Finding the Fourth Proportional to 134,620.08, 185,774.78 and 74,190.77

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Solution

The fourth proportional to 134,620.08, 185,774.78 and 74,190.77 is: 102,382.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,620.08 : 185,774.78 = 74,190.77 : x
  2. Step 2: Convert to fraction form
    134,620.08/185,774.78 = 74,190.77/x
  3. Step 3: Cross multiply
    134,620.08x = 185,774.78 × 74,190.77
  4. Step 4: Simplify right side
    134,620.08x = 13,782,772,674.95
  5. Step 5: Solve for x
    x = 13,782,772,674.95/134,620.08
  6. Step 6: Final answer
    x = 102,382.74

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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.