Home / 112,422.40-168,633.60-56,435.20

Finding the Fourth Proportional to 112,422.40, 168,633.60 and 56,435.20

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Solution

The fourth proportional to 112,422.40, 168,633.60 and 56,435.20 is: 84,652.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,422.40 : 168,633.60 = 56,435.20 : x
  2. Step 2: Convert to fraction form
    112,422.40/168,633.60 = 56,435.20/x
  3. Step 3: Cross multiply
    112,422.40x = 168,633.60 × 56,435.20
  4. Step 4: Simplify right side
    112,422.40x = 9,516,870,942.72
  5. Step 5: Solve for x
    x = 9,516,870,942.72/112,422.40
  6. Step 6: Final answer
    x = 84,652.80

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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.