Home / 109,976.81-164,965.16-39,856.01

Finding the Fourth Proportional to 109,976.81, 164,965.16 and 39,856.01

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Solution

The fourth proportional to 109,976.81, 164,965.16 and 39,856.01 is: 59,783.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,976.81 : 164,965.16 = 39,856.01 : x
  2. Step 2: Convert to fraction form
    109,976.81/164,965.16 = 39,856.01/x
  3. Step 3: Cross multiply
    109,976.81x = 164,965.16 × 39,856.01
  4. Step 4: Simplify right side
    109,976.81x = 6,574,852,867.33
  5. Step 5: Solve for x
    x = 6,574,852,867.33/109,976.81
  6. Step 6: Final answer
    x = 59,783.99

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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.