Home / 190,938.69-285,972.05-91,168.92

Finding the Fourth Proportional to 190,938.69, 285,972.05 and 91,168.92

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Solution

The fourth proportional to 190,938.69, 285,972.05 and 91,168.92 is: 136,545.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,938.69 : 285,972.05 = 91,168.92 : x
  2. Step 2: Convert to fraction form
    190,938.69/285,972.05 = 91,168.92/x
  3. Step 3: Cross multiply
    190,938.69x = 285,972.05 × 91,168.92
  4. Step 4: Simplify right side
    190,938.69x = 26,071,763,176.61
  5. Step 5: Solve for x
    x = 26,071,763,176.61/190,938.69
  6. Step 6: Final answer
    x = 136,545.21

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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.