Home / 120,775.16-181,075.26-60,840.56

Finding the Fourth Proportional to 120,775.16, 181,075.26 and 60,840.56

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Solution

The fourth proportional to 120,775.16, 181,075.26 and 60,840.56 is: 91,216.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,775.16 : 181,075.26 = 60,840.56 : x
  2. Step 2: Convert to fraction form
    120,775.16/181,075.26 = 60,840.56/x
  3. Step 3: Cross multiply
    120,775.16x = 181,075.26 × 60,840.56
  4. Step 4: Simplify right side
    120,775.16x = 11,016,720,220.55
  5. Step 5: Solve for x
    x = 11,016,720,220.55/120,775.16
  6. Step 6: Final answer
    x = 91,216.77

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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.