Home / 138,526.45-190,784.21-119,399.16

Finding the Fourth Proportional to 138,526.45, 190,784.21 and 119,399.16

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Solution

The fourth proportional to 138,526.45, 190,784.21 and 119,399.16 is: 164,441.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,526.45 : 190,784.21 = 119,399.16 : x
  2. Step 2: Convert to fraction form
    138,526.45/190,784.21 = 119,399.16/x
  3. Step 3: Cross multiply
    138,526.45x = 190,784.21 × 119,399.16
  4. Step 4: Simplify right side
    138,526.45x = 22,779,475,205.33
  5. Step 5: Solve for x
    x = 22,779,475,205.33/138,526.45
  6. Step 6: Final answer
    x = 164,441.34

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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.