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Finding the Fourth Proportional to 122,091, 168,491.01 and 68,374.86

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Solution

The fourth proportional to 122,091, 168,491.01 and 68,374.86 is: 94,360.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,091 : 168,491.01 = 68,374.86 : x
  2. Step 2: Convert to fraction form
    122,091/168,491.01 = 68,374.86/x
  3. Step 3: Cross multiply
    122,091x = 168,491.01 × 68,374.86
  4. Step 4: Simplify right side
    122,091x = 11,520,549,220.01
  5. Step 5: Solve for x
    x = 11,520,549,220.01/122,091
  6. Step 6: Final answer
    x = 94,360.35

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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.