Home / 123,418.70-170,317.51-66,830.07

Finding the Fourth Proportional to 123,418.70, 170,317.51 and 66,830.07

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Solution

The fourth proportional to 123,418.70, 170,317.51 and 66,830.07 is: 92,225.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,418.70 : 170,317.51 = 66,830.07 : x
  2. Step 2: Convert to fraction form
    123,418.70/170,317.51 = 66,830.07/x
  3. Step 3: Cross multiply
    123,418.70x = 170,317.51 × 66,830.07
  4. Step 4: Simplify right side
    123,418.70x = 11,382,330,948.45
  5. Step 5: Solve for x
    x = 11,382,330,948.45/123,418.70
  6. Step 6: Final answer
    x = 92,225.34

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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.