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Finding the Fourth Proportional to 122,010.30, 168,364.98 and 68,283

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Solution

The fourth proportional to 122,010.30, 168,364.98 and 68,283 is: 94,225.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,010.30 : 168,364.98 = 68,283 : x
  2. Step 2: Convert to fraction form
    122,010.30/168,364.98 = 68,283/x
  3. Step 3: Cross multiply
    122,010.30x = 168,364.98 × 68,283
  4. Step 4: Simplify right side
    122,010.30x = 11,496,465,929.34
  5. Step 5: Solve for x
    x = 11,496,465,929.34/122,010.30
  6. Step 6: Final answer
    x = 94,225.37

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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.