Home / 190,318.69-285,461.83-77,966.83

Finding the Fourth Proportional to 190,318.69, 285,461.83 and 77,966.83

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Solution

The fourth proportional to 190,318.69, 285,461.83 and 77,966.83 is: 116,943.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,318.69 : 285,461.83 = 77,966.83 : x
  2. Step 2: Convert to fraction form
    190,318.69/285,461.83 = 77,966.83/x
  3. Step 3: Cross multiply
    190,318.69x = 285,461.83 × 77,966.83
  4. Step 4: Simplify right side
    190,318.69x = 22,256,553,971.10
  5. Step 5: Solve for x
    x = 22,256,553,971.10/190,318.69
  6. Step 6: Final answer
    x = 116,943.61

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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.