Home / 190,779.40-263,287.52-105,897.88

Finding the Fourth Proportional to 190,779.40, 263,287.52 and 105,897.88

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Solution

The fourth proportional to 190,779.40, 263,287.52 and 105,897.88 is: 146,145.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,779.40 : 263,287.52 = 105,897.88 : x
  2. Step 2: Convert to fraction form
    190,779.40/263,287.52 = 105,897.88/x
  3. Step 3: Cross multiply
    190,779.40x = 263,287.52 × 105,897.88
  4. Step 4: Simplify right side
    190,779.40x = 27,881,590,198.46
  5. Step 5: Solve for x
    x = 27,881,590,198.46/190,779.40
  6. Step 6: Final answer
    x = 146,145.71

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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.