Home / 235,437.07-324,916.43-128,004.79

Finding the Fourth Proportional to 235,437.07, 324,916.43 and 128,004.79

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Solution

The fourth proportional to 235,437.07, 324,916.43 and 128,004.79 is: 176,653.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,437.07 : 324,916.43 = 128,004.79 : x
  2. Step 2: Convert to fraction form
    235,437.07/324,916.43 = 128,004.79/x
  3. Step 3: Cross multiply
    235,437.07x = 324,916.43 × 128,004.79
  4. Step 4: Simplify right side
    235,437.07x = 41,590,859,389.70
  5. Step 5: Solve for x
    x = 41,590,859,389.70/235,437.07
  6. Step 6: Final answer
    x = 176,653.83

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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.