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Finding the Fourth Proportional to 112,054.60, 168,081.90 and 40,977.10

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Solution

The fourth proportional to 112,054.60, 168,081.90 and 40,977.10 is: 61,465.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,054.60 : 168,081.90 = 40,977.10 : x
  2. Step 2: Convert to fraction form
    112,054.60/168,081.90 = 40,977.10/x
  3. Step 3: Cross multiply
    112,054.60x = 168,081.90 × 40,977.10
  4. Step 4: Simplify right side
    112,054.60x = 6,887,508,824.49
  5. Step 5: Solve for x
    x = 6,887,508,824.49/112,054.60
  6. Step 6: Final answer
    x = 61,465.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.