Home / 190,970.96-263,661.40-130,642.16

Finding the Fourth Proportional to 190,970.96, 263,661.40 and 130,642.16

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Solution

The fourth proportional to 190,970.96, 263,661.40 and 130,642.16 is: 180,369.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,970.96 : 263,661.40 = 130,642.16 : x
  2. Step 2: Convert to fraction form
    190,970.96/263,661.40 = 130,642.16/x
  3. Step 3: Cross multiply
    190,970.96x = 263,661.40 × 130,642.16
  4. Step 4: Simplify right side
    190,970.96x = 34,445,294,804.62
  5. Step 5: Solve for x
    x = 34,445,294,804.62/190,970.96
  6. Step 6: Final answer
    x = 180,369.28

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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.