Home / 190,678.23-285,840.77-70,668.36

Finding the Fourth Proportional to 190,678.23, 285,840.77 and 70,668.36

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Solution

The fourth proportional to 190,678.23, 285,840.77 and 70,668.36 is: 105,937.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,678.23 : 285,840.77 = 70,668.36 : x
  2. Step 2: Convert to fraction form
    190,678.23/285,840.77 = 70,668.36/x
  3. Step 3: Cross multiply
    190,678.23x = 285,840.77 × 70,668.36
  4. Step 4: Simplify right side
    190,678.23x = 20,199,898,083.70
  5. Step 5: Solve for x
    x = 20,199,898,083.70/190,678.23
  6. Step 6: Final answer
    x = 105,937.10

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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.