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Finding the Fourth Proportional to 90,185.84, 135,036.76 and 73,477.52

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Solution

The fourth proportional to 90,185.84, 135,036.76 and 73,477.52 is: 110,019.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,185.84 : 135,036.76 = 73,477.52 : x
  2. Step 2: Convert to fraction form
    90,185.84/135,036.76 = 73,477.52/x
  3. Step 3: Cross multiply
    90,185.84x = 135,036.76 × 73,477.52
  4. Step 4: Simplify right side
    90,185.84x = 9,922,166,233.64
  5. Step 5: Solve for x
    x = 9,922,166,233.64/90,185.84
  6. Step 6: Final answer
    x = 110,019.11

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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.