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Finding the Fourth Proportional to 164,779.80, 247,169.70 and 136,239.45

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Solution

The fourth proportional to 164,779.80, 247,169.70 and 136,239.45 is: 204,359.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,779.80 : 247,169.70 = 136,239.45 : x
  2. Step 2: Convert to fraction form
    164,779.80/247,169.70 = 136,239.45/x
  3. Step 3: Cross multiply
    164,779.80x = 247,169.70 × 136,239.45
  4. Step 4: Simplify right side
    164,779.80x = 33,674,263,984.67
  5. Step 5: Solve for x
    x = 33,674,263,984.67/164,779.80
  6. Step 6: Final answer
    x = 204,359.18

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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.