Home / 112,431.60-168,701.40-75,009.60

Finding the Fourth Proportional to 112,431.60, 168,701.40 and 75,009.60

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Solution

The fourth proportional to 112,431.60, 168,701.40 and 75,009.60 is: 112,550.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,431.60 : 168,701.40 = 75,009.60 : x
  2. Step 2: Convert to fraction form
    112,431.60/168,701.40 = 75,009.60/x
  3. Step 3: Cross multiply
    112,431.60x = 168,701.40 × 75,009.60
  4. Step 4: Simplify right side
    112,431.60x = 12,654,224,533.44
  5. Step 5: Solve for x
    x = 12,654,224,533.44/112,431.60
  6. Step 6: Final answer
    x = 112,550.43

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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.