Home / 120,961.92-181,525.44-42,075.36

Finding the Fourth Proportional to 120,961.92, 181,525.44 and 42,075.36

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Solution

The fourth proportional to 120,961.92, 181,525.44 and 42,075.36 is: 63,141.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,961.92 : 181,525.44 = 42,075.36 : x
  2. Step 2: Convert to fraction form
    120,961.92/181,525.44 = 42,075.36/x
  3. Step 3: Cross multiply
    120,961.92x = 181,525.44 × 42,075.36
  4. Step 4: Simplify right side
    120,961.92x = 7,637,748,237.16
  5. Step 5: Solve for x
    x = 7,637,748,237.16/120,961.92
  6. Step 6: Final answer
    x = 63,141.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.