Home / 112,129.68-154,755.60-73,883.28

Finding the Fourth Proportional to 112,129.68, 154,755.60 and 73,883.28

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Solution

The fourth proportional to 112,129.68, 154,755.60 and 73,883.28 is: 101,969.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,129.68 : 154,755.60 = 73,883.28 : x
  2. Step 2: Convert to fraction form
    112,129.68/154,755.60 = 73,883.28/x
  3. Step 3: Cross multiply
    112,129.68x = 154,755.60 × 73,883.28
  4. Step 4: Simplify right side
    112,129.68x = 11,433,851,326.37
  5. Step 5: Solve for x
    x = 11,433,851,326.37/112,129.68
  6. Step 6: Final answer
    x = 101,969.89

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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.