Home / 112,246.40-168,400.20-45,671.60

Finding the Fourth Proportional to 112,246.40, 168,400.20 and 45,671.60

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Solution

The fourth proportional to 112,246.40, 168,400.20 and 45,671.60 is: 68,519.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,246.40 : 168,400.20 = 45,671.60 : x
  2. Step 2: Convert to fraction form
    112,246.40/168,400.20 = 45,671.60/x
  3. Step 3: Cross multiply
    112,246.40x = 168,400.20 × 45,671.60
  4. Step 4: Simplify right side
    112,246.40x = 7,691,106,574.32
  5. Step 5: Solve for x
    x = 7,691,106,574.32/112,246.40
  6. Step 6: Final answer
    x = 68,519.85

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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.