Home / 190,711.16-286,001.94-66,023

Finding the Fourth Proportional to 190,711.16, 286,001.94 and 66,023

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Solution

The fourth proportional to 190,711.16, 286,001.94 and 66,023 is: 99,012.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,711.16 : 286,001.94 = 66,023 : x
  2. Step 2: Convert to fraction form
    190,711.16/286,001.94 = 66,023/x
  3. Step 3: Cross multiply
    190,711.16x = 286,001.94 × 66,023
  4. Step 4: Simplify right side
    190,711.16x = 18,882,706,084.62
  5. Step 5: Solve for x
    x = 18,882,706,084.62/190,711.16
  6. Step 6: Final answer
    x = 99,012.07

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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.