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Finding the Fourth Proportional to 189,075.76, 260,912.26 and 104,192.82

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Solution

The fourth proportional to 189,075.76, 260,912.26 and 104,192.82 is: 143,779.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,075.76 : 260,912.26 = 104,192.82 : x
  2. Step 2: Convert to fraction form
    189,075.76/260,912.26 = 104,192.82/x
  3. Step 3: Cross multiply
    189,075.76x = 260,912.26 × 104,192.82
  4. Step 4: Simplify right side
    189,075.76x = 27,185,184,141.97
  5. Step 5: Solve for x
    x = 27,185,184,141.97/189,075.76
  6. Step 6: Final answer
    x = 143,779.32

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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.