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Finding the Fourth Proportional to 189,097.12, 283,648.56 and 55,990.84

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Solution

The fourth proportional to 189,097.12, 283,648.56 and 55,990.84 is: 83,987.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,097.12 : 283,648.56 = 55,990.84 : x
  2. Step 2: Convert to fraction form
    189,097.12/283,648.56 = 55,990.84/x
  3. Step 3: Cross multiply
    189,097.12x = 283,648.56 × 55,990.84
  4. Step 4: Simplify right side
    189,097.12x = 15,881,721,139.19
  5. Step 5: Solve for x
    x = 15,881,721,139.19/189,097.12
  6. Step 6: Final answer
    x = 83,987.11

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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.