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Finding the Fourth Proportional to 119,365.80, 164,716.76 and 68,378.76

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Solution

The fourth proportional to 119,365.80, 164,716.76 and 68,378.76 is: 94,358.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,365.80 : 164,716.76 = 68,378.76 : x
  2. Step 2: Convert to fraction form
    119,365.80/164,716.76 = 68,378.76/x
  3. Step 3: Cross multiply
    119,365.80x = 164,716.76 × 68,378.76
  4. Step 4: Simplify right side
    119,365.80x = 11,263,127,800.02
  5. Step 5: Solve for x
    x = 11,263,127,800.02/119,365.80
  6. Step 6: Final answer
    x = 94,358.08

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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.