Home / 103,673.97-143,077.32-58,356.30

Finding the Fourth Proportional to 103,673.97, 143,077.32 and 58,356.30

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Solution

The fourth proportional to 103,673.97, 143,077.32 and 58,356.30 is: 80,535.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,673.97 : 143,077.32 = 58,356.30 : x
  2. Step 2: Convert to fraction form
    103,673.97/143,077.32 = 58,356.30/x
  3. Step 3: Cross multiply
    103,673.97x = 143,077.32 × 58,356.30
  4. Step 4: Simplify right side
    103,673.97x = 8,349,463,009.12
  5. Step 5: Solve for x
    x = 8,349,463,009.12/103,673.97
  6. Step 6: Final answer
    x = 80,535.77

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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.