Home / 231,965.06-320,095.60-128,598.22

Finding the Fourth Proportional to 231,965.06, 320,095.60 and 128,598.22

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Solution

The fourth proportional to 231,965.06, 320,095.60 and 128,598.22 is: 177,456.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,965.06 : 320,095.60 = 128,598.22 : x
  2. Step 2: Convert to fraction form
    231,965.06/320,095.60 = 128,598.22/x
  3. Step 3: Cross multiply
    231,965.06x = 320,095.60 × 128,598.22
  4. Step 4: Simplify right side
    231,965.06x = 41,163,724,389.83
  5. Step 5: Solve for x
    x = 41,163,724,389.83/231,965.06
  6. Step 6: Final answer
    x = 177,456.57

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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.