Home / 190,726.79-286,278.51-143,176.55

Finding the Fourth Proportional to 190,726.79, 286,278.51 and 143,176.55

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Solution

The fourth proportional to 190,726.79, 286,278.51 and 143,176.55 is: 214,906.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,726.79 : 286,278.51 = 143,176.55 : x
  2. Step 2: Convert to fraction form
    190,726.79/286,278.51 = 143,176.55/x
  3. Step 3: Cross multiply
    190,726.79x = 286,278.51 × 143,176.55
  4. Step 4: Simplify right side
    190,726.79x = 40,988,369,400.94
  5. Step 5: Solve for x
    x = 40,988,369,400.94/190,726.79
  6. Step 6: Final answer
    x = 214,906.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.