Home / 121,075.36-181,611.08-54,468.38

Finding the Fourth Proportional to 121,075.36, 181,611.08 and 54,468.38

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Solution

The fourth proportional to 121,075.36, 181,611.08 and 54,468.38 is: 81,701.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,075.36 : 181,611.08 = 54,468.38 : x
  2. Step 2: Convert to fraction form
    121,075.36/181,611.08 = 54,468.38/x
  3. Step 3: Cross multiply
    121,075.36x = 181,611.08 × 54,468.38
  4. Step 4: Simplify right side
    121,075.36x = 9,892,061,317.65
  5. Step 5: Solve for x
    x = 9,892,061,317.65/121,075.36
  6. Step 6: Final answer
    x = 81,701.69

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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.