Home / 122,755.32-169,415.34-75,036.60

Finding the Fourth Proportional to 122,755.32, 169,415.34 and 75,036.60

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Solution

The fourth proportional to 122,755.32, 169,415.34 and 75,036.60 is: 103,558.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,755.32 : 169,415.34 = 75,036.60 : x
  2. Step 2: Convert to fraction form
    122,755.32/169,415.34 = 75,036.60/x
  3. Step 3: Cross multiply
    122,755.32x = 169,415.34 × 75,036.60
  4. Step 4: Simplify right side
    122,755.32x = 12,712,351,101.44
  5. Step 5: Solve for x
    x = 12,712,351,101.44/122,755.32
  6. Step 6: Final answer
    x = 103,558.45

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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.