Home / 154,685.36-213,466.20-87,617.36

Finding the Fourth Proportional to 154,685.36, 213,466.20 and 87,617.36

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Solution

The fourth proportional to 154,685.36, 213,466.20 and 87,617.36 is: 120,912.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,685.36 : 213,466.20 = 87,617.36 : x
  2. Step 2: Convert to fraction form
    154,685.36/213,466.20 = 87,617.36/x
  3. Step 3: Cross multiply
    154,685.36x = 213,466.20 × 87,617.36
  4. Step 4: Simplify right side
    154,685.36x = 18,703,344,893.23
  5. Step 5: Solve for x
    x = 18,703,344,893.23/154,685.36
  6. Step 6: Final answer
    x = 120,912.19

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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.