Home / 190,140.04-262,390.06-105,255.28

Finding the Fourth Proportional to 190,140.04, 262,390.06 and 105,255.28

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Solution

The fourth proportional to 190,140.04, 262,390.06 and 105,255.28 is: 145,250.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,140.04 : 262,390.06 = 105,255.28 : x
  2. Step 2: Convert to fraction form
    190,140.04/262,390.06 = 105,255.28/x
  3. Step 3: Cross multiply
    190,140.04x = 262,390.06 × 105,255.28
  4. Step 4: Simplify right side
    190,140.04x = 27,617,939,234.52
  5. Step 5: Solve for x
    x = 27,617,939,234.52/190,140.04
  6. Step 6: Final answer
    x = 145,250.52

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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.