Home / 229,996.40-317,395.06-128,019.69

Finding the Fourth Proportional to 229,996.40, 317,395.06 and 128,019.69

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Solution

The fourth proportional to 229,996.40, 317,395.06 and 128,019.69 is: 176,667.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,996.40 : 317,395.06 = 128,019.69 : x
  2. Step 2: Convert to fraction form
    229,996.40/317,395.06 = 128,019.69/x
  3. Step 3: Cross multiply
    229,996.40x = 317,395.06 × 128,019.69
  4. Step 4: Simplify right side
    229,996.40x = 40,632,816,868.68
  5. Step 5: Solve for x
    x = 40,632,816,868.68/229,996.40
  6. Step 6: Final answer
    x = 176,667.19

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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.