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Finding the Fourth Proportional to 123,015.17, 183,848.74 and 89,805.17

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Solution

The fourth proportional to 123,015.17, 183,848.74 and 89,805.17 is: 134,215.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,015.17 : 183,848.74 = 89,805.17 : x
  2. Step 2: Convert to fraction form
    123,015.17/183,848.74 = 89,805.17/x
  3. Step 3: Cross multiply
    123,015.17x = 183,848.74 × 89,805.17
  4. Step 4: Simplify right side
    123,015.17x = 16,510,567,585.09
  5. Step 5: Solve for x
    x = 16,510,567,585.09/123,015.17
  6. Step 6: Final answer
    x = 134,215.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.