Home / 103,189.50-142,357.68-62,897.64

Finding the Fourth Proportional to 103,189.50, 142,357.68 and 62,897.64

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Solution

The fourth proportional to 103,189.50, 142,357.68 and 62,897.64 is: 86,772.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,189.50 : 142,357.68 = 62,897.64 : x
  2. Step 2: Convert to fraction form
    103,189.50/142,357.68 = 62,897.64/x
  3. Step 3: Cross multiply
    103,189.50x = 142,357.68 × 62,897.64
  4. Step 4: Simplify right side
    103,189.50x = 8,953,962,107.88
  5. Step 5: Solve for x
    x = 8,953,962,107.88/103,189.50
  6. Step 6: Final answer
    x = 86,772.03

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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.