Home / 137,724.30-190,179.09-130,638.42

Finding the Fourth Proportional to 137,724.30, 190,179.09 and 130,638.42

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Solution

The fourth proportional to 137,724.30, 190,179.09 and 130,638.42 is: 180,394.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,724.30 : 190,179.09 = 130,638.42 : x
  2. Step 2: Convert to fraction form
    137,724.30/190,179.09 = 130,638.42/x
  3. Step 3: Cross multiply
    137,724.30x = 190,179.09 × 130,638.42
  4. Step 4: Simplify right side
    137,724.30x = 24,844,695,834.64
  5. Step 5: Solve for x
    x = 24,844,695,834.64/137,724.30
  6. Step 6: Final answer
    x = 180,394.42

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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.