Home / 128,028.42-176,652.85-73,570.07

Finding the Fourth Proportional to 128,028.42, 176,652.85 and 73,570.07

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Solution

The fourth proportional to 128,028.42, 176,652.85 and 73,570.07 is: 101,511.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,028.42 : 176,652.85 = 73,570.07 : x
  2. Step 2: Convert to fraction form
    128,028.42/176,652.85 = 73,570.07/x
  3. Step 3: Cross multiply
    128,028.42x = 176,652.85 × 73,570.07
  4. Step 4: Simplify right side
    128,028.42x = 12,996,362,540.20
  5. Step 5: Solve for x
    x = 12,996,362,540.20/128,028.42
  6. Step 6: Final answer
    x = 101,511.54

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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.