Home / 208,066.12-312,025.30-74,910.62

Finding the Fourth Proportional to 208,066.12, 312,025.30 and 74,910.62

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Solution

The fourth proportional to 208,066.12, 312,025.30 and 74,910.62 is: 112,339.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,066.12 : 312,025.30 = 74,910.62 : x
  2. Step 2: Convert to fraction form
    208,066.12/312,025.30 = 74,910.62/x
  3. Step 3: Cross multiply
    208,066.12x = 312,025.30 × 74,910.62
  4. Step 4: Simplify right side
    208,066.12x = 23,374,009,271.47
  5. Step 5: Solve for x
    x = 23,374,009,271.47/208,066.12
  6. Step 6: Final answer
    x = 112,339.33

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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.