Home / 103,650.03-143,031.78-61,200.36

Finding the Fourth Proportional to 103,650.03, 143,031.78 and 61,200.36

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Solution

The fourth proportional to 103,650.03, 143,031.78 and 61,200.36 is: 84,453.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,650.03 : 143,031.78 = 61,200.36 : x
  2. Step 2: Convert to fraction form
    103,650.03/143,031.78 = 61,200.36/x
  3. Step 3: Cross multiply
    103,650.03x = 143,031.78 × 61,200.36
  4. Step 4: Simplify right side
    103,650.03x = 8,753,596,427.44
  5. Step 5: Solve for x
    x = 8,753,596,427.44/103,650.03
  6. Step 6: Final answer
    x = 84,453.39

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1.5x scale

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.