Home / 112,431.60-168,647.40-82,907.10

Finding the Fourth Proportional to 112,431.60, 168,647.40 and 82,907.10

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Solution

The fourth proportional to 112,431.60, 168,647.40 and 82,907.10 is: 124,360.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,431.60 : 168,647.40 = 82,907.10 : x
  2. Step 2: Convert to fraction form
    112,431.60/168,647.40 = 82,907.10/x
  3. Step 3: Cross multiply
    112,431.60x = 168,647.40 × 82,907.10
  4. Step 4: Simplify right side
    112,431.60x = 13,982,066,856.54
  5. Step 5: Solve for x
    x = 13,982,066,856.54/112,431.60
  6. Step 6: Final answer
    x = 124,360.65

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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.