Home / 103,646.22-143,039.01-58,328.54

Finding the Fourth Proportional to 103,646.22, 143,039.01 and 58,328.54

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Solution

The fourth proportional to 103,646.22, 143,039.01 and 58,328.54 is: 80,497.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,646.22 : 143,039.01 = 58,328.54 : x
  2. Step 2: Convert to fraction form
    103,646.22/143,039.01 = 58,328.54/x
  3. Step 3: Cross multiply
    103,646.22x = 143,039.01 × 58,328.54
  4. Step 4: Simplify right side
    103,646.22x = 8,343,256,656.28
  5. Step 5: Solve for x
    x = 8,343,256,656.28/103,646.22
  6. Step 6: Final answer
    x = 80,497.46

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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.