Home / 112,880.40-169,320.60-56,893.20

Finding the Fourth Proportional to 112,880.40, 169,320.60 and 56,893.20

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Solution

The fourth proportional to 112,880.40, 169,320.60 and 56,893.20 is: 85,339.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,880.40 : 169,320.60 = 56,893.20 : x
  2. Step 2: Convert to fraction form
    112,880.40/169,320.60 = 56,893.20/x
  3. Step 3: Cross multiply
    112,880.40x = 169,320.60 × 56,893.20
  4. Step 4: Simplify right side
    112,880.40x = 9,633,190,759.92
  5. Step 5: Solve for x
    x = 9,633,190,759.92/112,880.40
  6. Step 6: Final answer
    x = 85,339.80

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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.