Home / 104,065.56-143,610.72-56,319.36

Finding the Fourth Proportional to 104,065.56, 143,610.72 and 56,319.36

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Solution

The fourth proportional to 104,065.56, 143,610.72 and 56,319.36 is: 77,720.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,065.56 : 143,610.72 = 56,319.36 : x
  2. Step 2: Convert to fraction form
    104,065.56/143,610.72 = 56,319.36/x
  3. Step 3: Cross multiply
    104,065.56x = 143,610.72 × 56,319.36
  4. Step 4: Simplify right side
    104,065.56x = 8,088,063,839.54
  5. Step 5: Solve for x
    x = 8,088,063,839.54/104,065.56
  6. Step 6: Final answer
    x = 77,720.85

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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.