Home / 147,036.20-219,971.10-127,531.40

Finding the Fourth Proportional to 147,036.20, 219,971.10 and 127,531.40

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Solution

The fourth proportional to 147,036.20, 219,971.10 and 127,531.40 is: 190,791.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,036.20 : 219,971.10 = 127,531.40 : x
  2. Step 2: Convert to fraction form
    147,036.20/219,971.10 = 127,531.40/x
  3. Step 3: Cross multiply
    147,036.20x = 219,971.10 × 127,531.40
  4. Step 4: Simplify right side
    147,036.20x = 28,053,222,342.54
  5. Step 5: Solve for x
    x = 28,053,222,342.54/147,036.20
  6. Step 6: Final answer
    x = 190,791.26

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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.