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Finding the Fourth Proportional to 189,085.06, 260,939.17 and 104,205.22

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Solution

The fourth proportional to 189,085.06, 260,939.17 and 104,205.22 is: 143,804.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,085.06 : 260,939.17 = 104,205.22 : x
  2. Step 2: Convert to fraction form
    189,085.06/260,939.17 = 104,205.22/x
  3. Step 3: Cross multiply
    189,085.06x = 260,939.17 × 104,205.22
  4. Step 4: Simplify right side
    189,085.06x = 27,191,223,616.47
  5. Step 5: Solve for x
    x = 27,191,223,616.47/189,085.06
  6. Step 6: Final answer
    x = 143,804.19

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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.