Home / 104,085.28-143,644.64-58,747.20

Finding the Fourth Proportional to 104,085.28, 143,644.64 and 58,747.20

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Solution

The fourth proportional to 104,085.28, 143,644.64 and 58,747.20 is: 81,075.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,085.28 : 143,644.64 = 58,747.20 : x
  2. Step 2: Convert to fraction form
    104,085.28/143,644.64 = 58,747.20/x
  3. Step 3: Cross multiply
    104,085.28x = 143,644.64 × 58,747.20
  4. Step 4: Simplify right side
    104,085.28x = 8,438,720,395.01
  5. Step 5: Solve for x
    x = 8,438,720,395.01/104,085.28
  6. Step 6: Final answer
    x = 81,075.06

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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.