Home / 235,563.06-325,082.38-128,138.84

Finding the Fourth Proportional to 235,563.06, 325,082.38 and 128,138.84

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Solution

The fourth proportional to 235,563.06, 325,082.38 and 128,138.84 is: 176,834.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,563.06 : 325,082.38 = 128,138.84 : x
  2. Step 2: Convert to fraction form
    235,563.06/325,082.38 = 128,138.84/x
  3. Step 3: Cross multiply
    235,563.06x = 325,082.38 × 128,138.84
  4. Step 4: Simplify right side
    235,563.06x = 41,655,679,077.64
  5. Step 5: Solve for x
    x = 41,655,679,077.64/235,563.06
  6. Step 6: Final answer
    x = 176,834.51

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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.