Home / 102,739.06-141,777.09-57,417.24

Finding the Fourth Proportional to 102,739.06, 141,777.09 and 57,417.24

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Solution

The fourth proportional to 102,739.06, 141,777.09 and 57,417.24 is: 79,234.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,739.06 : 141,777.09 = 57,417.24 : x
  2. Step 2: Convert to fraction form
    102,739.06/141,777.09 = 57,417.24/x
  3. Step 3: Cross multiply
    102,739.06x = 141,777.09 × 57,417.24
  4. Step 4: Simplify right side
    102,739.06x = 8,140,449,203.03
  5. Step 5: Solve for x
    x = 8,140,449,203.03/102,739.06
  6. Step 6: Final answer
    x = 79,234.22

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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.