Home / 103,825.04-143,279.89-61,383.20

Finding the Fourth Proportional to 103,825.04, 143,279.89 and 61,383.20

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Solution

The fourth proportional to 103,825.04, 143,279.89 and 61,383.20 is: 84,709.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,825.04 : 143,279.89 = 61,383.20 : x
  2. Step 2: Convert to fraction form
    103,825.04/143,279.89 = 61,383.20/x
  3. Step 3: Cross multiply
    103,825.04x = 143,279.89 × 61,383.20
  4. Step 4: Simplify right side
    103,825.04x = 8,794,977,273.99
  5. Step 5: Solve for x
    x = 8,794,977,273.99/103,825.04
  6. Step 6: Final answer
    x = 84,709.60

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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.