Home / 122,980.22-169,750.34-72,004.90

Finding the Fourth Proportional to 122,980.22, 169,750.34 and 72,004.90

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Solution

The fourth proportional to 122,980.22, 169,750.34 and 72,004.90 is: 99,388.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,980.22 : 169,750.34 = 72,004.90 : x
  2. Step 2: Convert to fraction form
    122,980.22/169,750.34 = 72,004.90/x
  3. Step 3: Cross multiply
    122,980.22x = 169,750.34 × 72,004.90
  4. Step 4: Simplify right side
    122,980.22x = 12,222,856,256.67
  5. Step 5: Solve for x
    x = 12,222,856,256.67/122,980.22
  6. Step 6: Final answer
    x = 99,388.80

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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.