Home / 117,236.40-161,859.60-90,327.84

Finding the Fourth Proportional to 117,236.40, 161,859.60 and 90,327.84

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Solution

The fourth proportional to 117,236.40, 161,859.60 and 90,327.84 is: 124,708.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,236.40 : 161,859.60 = 90,327.84 : x
  2. Step 2: Convert to fraction form
    117,236.40/161,859.60 = 90,327.84/x
  3. Step 3: Cross multiply
    117,236.40x = 161,859.60 × 90,327.84
  4. Step 4: Simplify right side
    117,236.40x = 14,620,428,051.26
  5. Step 5: Solve for x
    x = 14,620,428,051.26/117,236.40
  6. Step 6: Final answer
    x = 124,708.95

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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.