Home / 199,348.08-275,019.06-121,783.69

Finding the Fourth Proportional to 199,348.08, 275,019.06 and 121,783.69

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Solution

The fourth proportional to 199,348.08, 275,019.06 and 121,783.69 is: 168,011.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,348.08 : 275,019.06 = 121,783.69 : x
  2. Step 2: Convert to fraction form
    199,348.08/275,019.06 = 121,783.69/x
  3. Step 3: Cross multiply
    199,348.08x = 275,019.06 × 121,783.69
  4. Step 4: Simplify right side
    199,348.08x = 33,492,835,947.13
  5. Step 5: Solve for x
    x = 33,492,835,947.13/199,348.08
  6. Step 6: Final answer
    x = 168,011.83

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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.