Home / 145,615.82-200,872.75-100,214.98

Finding the Fourth Proportional to 145,615.82, 200,872.75 and 100,214.98

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Solution

The fourth proportional to 145,615.82, 200,872.75 and 100,214.98 is: 138,243.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,615.82 : 200,872.75 = 100,214.98 : x
  2. Step 2: Convert to fraction form
    145,615.82/200,872.75 = 100,214.98/x
  3. Step 3: Cross multiply
    145,615.82x = 200,872.75 × 100,214.98
  4. Step 4: Simplify right side
    145,615.82x = 20,130,458,623.80
  5. Step 5: Solve for x
    x = 20,130,458,623.80/145,615.82
  6. Step 6: Final answer
    x = 138,243.62

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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.