Home / 103,645.07-143,028.48-58,323.04

Finding the Fourth Proportional to 103,645.07, 143,028.48 and 58,323.04

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Solution

The fourth proportional to 103,645.07, 143,028.48 and 58,323.04 is: 80,484.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,645.07 : 143,028.48 = 58,323.04 : x
  2. Step 2: Convert to fraction form
    103,645.07/143,028.48 = 58,323.04/x
  3. Step 3: Cross multiply
    103,645.07x = 143,028.48 × 58,323.04
  4. Step 4: Simplify right side
    103,645.07x = 8,341,855,621.32
  5. Step 5: Solve for x
    x = 8,341,855,621.32/103,645.07
  6. Step 6: Final answer
    x = 80,484.83

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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.