Home / 136,877.89-205,316.84-51,504.80

Finding the Fourth Proportional to 136,877.89, 205,316.84 and 51,504.80

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Solution

The fourth proportional to 136,877.89, 205,316.84 and 51,504.80 is: 77,257.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,877.89 : 205,316.84 = 51,504.80 : x
  2. Step 2: Convert to fraction form
    136,877.89/205,316.84 = 51,504.80/x
  3. Step 3: Cross multiply
    136,877.89x = 205,316.84 × 51,504.80
  4. Step 4: Simplify right side
    136,877.89x = 10,574,802,780.83
  5. Step 5: Solve for x
    x = 10,574,802,780.83/136,877.89
  6. Step 6: Final answer
    x = 77,257.20

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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.