Home / 190,303.92-262,618.85-105,420.98

Finding the Fourth Proportional to 190,303.92, 262,618.85 and 105,420.98

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Solution

The fourth proportional to 190,303.92, 262,618.85 and 105,420.98 is: 145,480.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,303.92 : 262,618.85 = 105,420.98 : x
  2. Step 2: Convert to fraction form
    190,303.92/262,618.85 = 105,420.98/x
  3. Step 3: Cross multiply
    190,303.92x = 262,618.85 × 105,420.98
  4. Step 4: Simplify right side
    190,303.92x = 27,685,534,693.27
  5. Step 5: Solve for x
    x = 27,685,534,693.27/190,303.92
  6. Step 6: Final answer
    x = 145,480.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.