Home / 84,981.36-117,394.20-68,097.76

Finding the Fourth Proportional to 84,981.36, 117,394.20 and 68,097.76

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Solution

The fourth proportional to 84,981.36, 117,394.20 and 68,097.76 is: 94,071.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,981.36 : 117,394.20 = 68,097.76 : x
  2. Step 2: Convert to fraction form
    84,981.36/117,394.20 = 68,097.76/x
  3. Step 3: Cross multiply
    84,981.36x = 117,394.20 × 68,097.76
  4. Step 4: Simplify right side
    84,981.36x = 7,994,282,056.99
  5. Step 5: Solve for x
    x = 7,994,282,056.99/84,981.36
  6. Step 6: Final answer
    x = 94,071.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.