Home / 219,127.40-329,036.70-125,815.40

Finding the Fourth Proportional to 219,127.40, 329,036.70 and 125,815.40

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Solution

The fourth proportional to 219,127.40, 329,036.70 and 125,815.40 is: 188,921.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,127.40 : 329,036.70 = 125,815.40 : x
  2. Step 2: Convert to fraction form
    219,127.40/329,036.70 = 125,815.40/x
  3. Step 3: Cross multiply
    219,127.40x = 329,036.70 × 125,815.40
  4. Step 4: Simplify right side
    219,127.40x = 41,397,884,025.18
  5. Step 5: Solve for x
    x = 41,397,884,025.18/219,127.40
  6. Step 6: Final answer
    x = 188,921.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.