Home / 147,508.63-203,559.75-82,972.98

Finding the Fourth Proportional to 147,508.63, 203,559.75 and 82,972.98

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Solution

The fourth proportional to 147,508.63, 203,559.75 and 82,972.98 is: 114,501.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,508.63 : 203,559.75 = 82,972.98 : x
  2. Step 2: Convert to fraction form
    147,508.63/203,559.75 = 82,972.98/x
  3. Step 3: Cross multiply
    147,508.63x = 203,559.75 × 82,972.98
  4. Step 4: Simplify right side
    147,508.63x = 16,889,959,065.56
  5. Step 5: Solve for x
    x = 16,889,959,065.56/147,508.63
  6. Step 6: Final answer
    x = 114,501.50

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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.