Home / 103,630.04-143,009.44-58,918.04

Finding the Fourth Proportional to 103,630.04, 143,009.44 and 58,918.04

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Solution

The fourth proportional to 103,630.04, 143,009.44 and 58,918.04 is: 81,306.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,630.04 : 143,009.44 = 58,918.04 : x
  2. Step 2: Convert to fraction form
    103,630.04/143,009.44 = 58,918.04/x
  3. Step 3: Cross multiply
    103,630.04x = 143,009.44 × 58,918.04
  4. Step 4: Simplify right side
    103,630.04x = 8,425,835,906.30
  5. Step 5: Solve for x
    x = 8,425,835,906.30/103,630.04
  6. Step 6: Final answer
    x = 81,306.89

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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.