Home / 121,412.53-182,075.05-51,297.31

Finding the Fourth Proportional to 121,412.53, 182,075.05 and 51,297.31

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Solution

The fourth proportional to 121,412.53, 182,075.05 and 51,297.31 is: 76,927.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,412.53 : 182,075.05 = 51,297.31 : x
  2. Step 2: Convert to fraction form
    121,412.53/182,075.05 = 51,297.31/x
  3. Step 3: Cross multiply
    121,412.53x = 182,075.05 × 51,297.31
  4. Step 4: Simplify right side
    121,412.53x = 9,339,959,699.68
  5. Step 5: Solve for x
    x = 9,339,959,699.68/121,412.53
  6. Step 6: Final answer
    x = 76,927.48

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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.