Home / 122,022.21-168,390.72-68,307.33

Finding the Fourth Proportional to 122,022.21, 168,390.72 and 68,307.33

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Solution

The fourth proportional to 122,022.21, 168,390.72 and 68,307.33 is: 94,264.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,022.21 : 168,390.72 = 68,307.33 : x
  2. Step 2: Convert to fraction form
    122,022.21/168,390.72 = 68,307.33/x
  3. Step 3: Cross multiply
    122,022.21x = 168,390.72 × 68,307.33
  4. Step 4: Simplify right side
    122,022.21x = 11,502,320,479.98
  5. Step 5: Solve for x
    x = 11,502,320,479.98/122,022.21
  6. Step 6: Final answer
    x = 94,264.15

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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.