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Finding the Fourth Proportional to 122,292.36, 168,765.30 and 71,303.70

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Solution

The fourth proportional to 122,292.36, 168,765.30 and 71,303.70 is: 98,400.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,292.36 : 168,765.30 = 71,303.70 : x
  2. Step 2: Convert to fraction form
    122,292.36/168,765.30 = 71,303.70/x
  3. Step 3: Cross multiply
    122,292.36x = 168,765.30 × 71,303.70
  4. Step 4: Simplify right side
    122,292.36x = 12,033,590,321.61
  5. Step 5: Solve for x
    x = 12,033,590,321.61/122,292.36
  6. Step 6: Final answer
    x = 98,400.18

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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.