Home / 128,306.44-177,059.77-70,944.27

Finding the Fourth Proportional to 128,306.44, 177,059.77 and 70,944.27

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Solution

The fourth proportional to 128,306.44, 177,059.77 and 70,944.27 is: 97,901.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,306.44 : 177,059.77 = 70,944.27 : x
  2. Step 2: Convert to fraction form
    128,306.44/177,059.77 = 70,944.27/x
  3. Step 3: Cross multiply
    128,306.44x = 177,059.77 × 70,944.27
  4. Step 4: Simplify right side
    128,306.44x = 12,561,376,129.02
  5. Step 5: Solve for x
    x = 12,561,376,129.02/128,306.44
  6. Step 6: Final answer
    x = 97,901.37

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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.