Home / 190,890.14-286,309.05-105,658.64

Finding the Fourth Proportional to 190,890.14, 286,309.05 and 105,658.64

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Solution

The fourth proportional to 190,890.14, 286,309.05 and 105,658.64 is: 158,473.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,890.14 : 286,309.05 = 105,658.64 : x
  2. Step 2: Convert to fraction form
    190,890.14/286,309.05 = 105,658.64/x
  3. Step 3: Cross multiply
    190,890.14x = 286,309.05 × 105,658.64
  4. Step 4: Simplify right side
    190,890.14x = 30,251,024,842.69
  5. Step 5: Solve for x
    x = 30,251,024,842.69/190,890.14
  6. Step 6: Final answer
    x = 158,473.48

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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.