Home / 235,729.36-325,306.49-128,300.16

Finding the Fourth Proportional to 235,729.36, 325,306.49 and 128,300.16

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Solution

The fourth proportional to 235,729.36, 325,306.49 and 128,300.16 is: 177,054.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,729.36 : 325,306.49 = 128,300.16 : x
  2. Step 2: Convert to fraction form
    235,729.36/325,306.49 = 128,300.16/x
  3. Step 3: Cross multiply
    235,729.36x = 325,306.49 × 128,300.16
  4. Step 4: Simplify right side
    235,729.36x = 41,736,875,197.16
  5. Step 5: Solve for x
    x = 41,736,875,197.16/235,729.36
  6. Step 6: Final answer
    x = 177,054.21

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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.