Home / 190,611.52-263,045.16-105,730

Finding the Fourth Proportional to 190,611.52, 263,045.16 and 105,730

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Solution

The fourth proportional to 190,611.52, 263,045.16 and 105,730 is: 145,908.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,611.52 : 263,045.16 = 105,730 : x
  2. Step 2: Convert to fraction form
    190,611.52/263,045.16 = 105,730/x
  3. Step 3: Cross multiply
    190,611.52x = 263,045.16 × 105,730
  4. Step 4: Simplify right side
    190,611.52x = 27,811,764,766.80
  5. Step 5: Solve for x
    x = 27,811,764,766.80/190,611.52
  6. Step 6: Final answer
    x = 145,908.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.