Home / 154,741.74-213,537.51-87,673.74

Finding the Fourth Proportional to 154,741.74, 213,537.51 and 87,673.74

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Solution

The fourth proportional to 154,741.74, 213,537.51 and 87,673.74 is: 120,986.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,741.74 : 213,537.51 = 87,673.74 : x
  2. Step 2: Convert to fraction form
    154,741.74/213,537.51 = 87,673.74/x
  3. Step 3: Cross multiply
    154,741.74x = 213,537.51 × 87,673.74
  4. Step 4: Simplify right side
    154,741.74x = 18,721,632,131.99
  5. Step 5: Solve for x
    x = 18,721,632,131.99/154,741.74
  6. Step 6: Final answer
    x = 120,986.31

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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.