Home / 104,076.72-143,528.40-69,089.48

Finding the Fourth Proportional to 104,076.72, 143,528.40 and 69,089.48

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Solution

The fourth proportional to 104,076.72, 143,528.40 and 69,089.48 is: 95,278.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,076.72 : 143,528.40 = 69,089.48 : x
  2. Step 2: Convert to fraction form
    104,076.72/143,528.40 = 69,089.48/x
  3. Step 3: Cross multiply
    104,076.72x = 143,528.40 × 69,089.48
  4. Step 4: Simplify right side
    104,076.72x = 9,916,302,521.23
  5. Step 5: Solve for x
    x = 9,916,302,521.23/104,076.72
  6. Step 6: Final answer
    x = 95,278.78

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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.