Home / 123,246.09-170,075.70-69,530.40

Finding the Fourth Proportional to 123,246.09, 170,075.70 and 69,530.40

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Solution

The fourth proportional to 123,246.09, 170,075.70 and 69,530.40 is: 95,949.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,246.09 : 170,075.70 = 69,530.40 : x
  2. Step 2: Convert to fraction form
    123,246.09/170,075.70 = 69,530.40/x
  3. Step 3: Cross multiply
    123,246.09x = 170,075.70 × 69,530.40
  4. Step 4: Simplify right side
    123,246.09x = 11,825,431,451.28
  5. Step 5: Solve for x
    x = 11,825,431,451.28/123,246.09
  6. Step 6: Final answer
    x = 95,949.75

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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.