Home / 209,904.36-314,917.68-67,746.66

Finding the Fourth Proportional to 209,904.36, 314,917.68 and 67,746.66

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Solution

The fourth proportional to 209,904.36, 314,917.68 and 67,746.66 is: 101,639.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,904.36 : 314,917.68 = 67,746.66 : x
  2. Step 2: Convert to fraction form
    209,904.36/314,917.68 = 67,746.66/x
  3. Step 3: Cross multiply
    209,904.36x = 314,917.68 × 67,746.66
  4. Step 4: Simplify right side
    209,904.36x = 21,334,620,994.95
  5. Step 5: Solve for x
    x = 21,334,620,994.95/209,904.36
  6. Step 6: Final answer
    x = 101,639.72

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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.