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Finding the Fourth Proportional to 122,227.79, 168,671.36 and 67,779.69

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Solution

The fourth proportional to 122,227.79, 168,671.36 and 67,779.69 is: 93,534.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,227.79 : 168,671.36 = 67,779.69 : x
  2. Step 2: Convert to fraction form
    122,227.79/168,671.36 = 67,779.69/x
  3. Step 3: Cross multiply
    122,227.79x = 168,671.36 × 67,779.69
  4. Step 4: Simplify right side
    122,227.79x = 11,432,492,029.61
  5. Step 5: Solve for x
    x = 11,432,492,029.61/122,227.79
  6. Step 6: Final answer
    x = 93,534.31

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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.