Home / 144,240.78-199,052-86,913.30

Finding the Fourth Proportional to 144,240.78, 199,052 and 86,913.30

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Solution

The fourth proportional to 144,240.78, 199,052 and 86,913.30 is: 119,940.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,240.78 : 199,052 = 86,913.30 : x
  2. Step 2: Convert to fraction form
    144,240.78/199,052 = 86,913.30/x
  3. Step 3: Cross multiply
    144,240.78x = 199,052 × 86,913.30
  4. Step 4: Simplify right side
    144,240.78x = 17,300,266,191.60
  5. Step 5: Solve for x
    x = 17,300,266,191.60/144,240.78
  6. Step 6: Final answer
    x = 119,940.19

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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.