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Finding the Fourth Proportional to 122,575.06, 169,264.25 and 77,333.32

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Solution

The fourth proportional to 122,575.06, 169,264.25 and 77,333.32 is: 106,789.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,575.06 : 169,264.25 = 77,333.32 : x
  2. Step 2: Convert to fraction form
    122,575.06/169,264.25 = 77,333.32/x
  3. Step 3: Cross multiply
    122,575.06x = 169,264.25 × 77,333.32
  4. Step 4: Simplify right side
    122,575.06x = 13,089,766,409.81
  5. Step 5: Solve for x
    x = 13,089,766,409.81/122,575.06
  6. Step 6: Final answer
    x = 106,789.80

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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.