Home / 201,783.16-278,456.70-126,373.24

Finding the Fourth Proportional to 201,783.16, 278,456.70 and 126,373.24

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Solution

The fourth proportional to 201,783.16, 278,456.70 and 126,373.24 is: 174,392.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,783.16 : 278,456.70 = 126,373.24 : x
  2. Step 2: Convert to fraction form
    201,783.16/278,456.70 = 126,373.24/x
  3. Step 3: Cross multiply
    201,783.16x = 278,456.70 × 126,373.24
  4. Step 4: Simplify right side
    201,783.16x = 35,189,475,378.71
  5. Step 5: Solve for x
    x = 35,189,475,378.71/201,783.16
  6. Step 6: Final answer
    x = 174,392.53

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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.