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Finding the Fourth Proportional to 147,969.36, 221,695.68 and 123,168.84

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Solution

The fourth proportional to 147,969.36, 221,695.68 and 123,168.84 is: 184,538.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,969.36 : 221,695.68 = 123,168.84 : x
  2. Step 2: Convert to fraction form
    147,969.36/221,695.68 = 123,168.84/x
  3. Step 3: Cross multiply
    147,969.36x = 221,695.68 × 123,168.84
  4. Step 4: Simplify right side
    147,969.36x = 27,305,999,738.61
  5. Step 5: Solve for x
    x = 27,305,999,738.61/147,969.36
  6. Step 6: Final answer
    x = 184,538.20

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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.