Home / 122,109.35-168,518.67-68,397.65

Finding the Fourth Proportional to 122,109.35, 168,518.67 and 68,397.65

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Solution

The fourth proportional to 122,109.35, 168,518.67 and 68,397.65 is: 94,393.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,109.35 : 168,518.67 = 68,397.65 : x
  2. Step 2: Convert to fraction form
    122,109.35/168,518.67 = 68,397.65/x
  3. Step 3: Cross multiply
    122,109.35x = 168,518.67 × 68,397.65
  4. Step 4: Simplify right side
    122,109.35x = 11,526,280,734.35
  5. Step 5: Solve for x
    x = 11,526,280,734.35/122,109.35
  6. Step 6: Final answer
    x = 94,393.11

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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.