Home / 123,216.82-170,075.57-72,240.62

Finding the Fourth Proportional to 123,216.82, 170,075.57 and 72,240.62

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Solution

The fourth proportional to 123,216.82, 170,075.57 and 72,240.62 is: 99,713.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,216.82 : 170,075.57 = 72,240.62 : x
  2. Step 2: Convert to fraction form
    123,216.82/170,075.57 = 72,240.62/x
  3. Step 3: Cross multiply
    123,216.82x = 170,075.57 × 72,240.62
  4. Step 4: Simplify right side
    123,216.82x = 12,286,363,412.07
  5. Step 5: Solve for x
    x = 12,286,363,412.07/123,216.82
  6. Step 6: Final answer
    x = 99,713.36

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1.5x scale

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.