Home / 154,781.24-213,415.76-143,303.64

Finding the Fourth Proportional to 154,781.24, 213,415.76 and 143,303.64

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Solution

The fourth proportional to 154,781.24, 213,415.76 and 143,303.64 is: 197,590.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,781.24 : 213,415.76 = 143,303.64 : x
  2. Step 2: Convert to fraction form
    154,781.24/213,415.76 = 143,303.64/x
  3. Step 3: Cross multiply
    154,781.24x = 213,415.76 × 143,303.64
  4. Step 4: Simplify right side
    154,781.24x = 30,583,255,241.37
  5. Step 5: Solve for x
    x = 30,583,255,241.37/154,781.24
  6. Step 6: Final answer
    x = 197,590.19

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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.