Home / 102,393.05-141,297.75-57,075.98

Finding the Fourth Proportional to 102,393.05, 141,297.75 and 57,075.98

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Solution

The fourth proportional to 102,393.05, 141,297.75 and 57,075.98 is: 78,762.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,393.05 : 141,297.75 = 57,075.98 : x
  2. Step 2: Convert to fraction form
    102,393.05/141,297.75 = 57,075.98/x
  3. Step 3: Cross multiply
    102,393.05x = 141,297.75 × 57,075.98
  4. Step 4: Simplify right side
    102,393.05x = 8,064,706,846.56
  5. Step 5: Solve for x
    x = 8,064,706,846.56/102,393.05
  6. Step 6: Final answer
    x = 78,762.25

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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.