Home / 154,370.76-213,040.62-86,387.14

Finding the Fourth Proportional to 154,370.76, 213,040.62 and 86,387.14

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Solution

The fourth proportional to 154,370.76, 213,040.62 and 86,387.14 is: 119,219.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,370.76 : 213,040.62 = 86,387.14 : x
  2. Step 2: Convert to fraction form
    154,370.76/213,040.62 = 86,387.14/x
  3. Step 3: Cross multiply
    154,370.76x = 213,040.62 × 86,387.14
  4. Step 4: Simplify right side
    154,370.76x = 18,403,969,865.63
  5. Step 5: Solve for x
    x = 18,403,969,865.63/154,370.76
  6. Step 6: Final answer
    x = 119,219.27

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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.