Home / 103,732.14-143,153.19-63,445.17

Finding the Fourth Proportional to 103,732.14, 143,153.19 and 63,445.17

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Solution

The fourth proportional to 103,732.14, 143,153.19 and 63,445.17 is: 87,556.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,732.14 : 143,153.19 = 63,445.17 : x
  2. Step 2: Convert to fraction form
    103,732.14/143,153.19 = 63,445.17/x
  3. Step 3: Cross multiply
    103,732.14x = 143,153.19 × 63,445.17
  4. Step 4: Simplify right side
    103,732.14x = 9,082,378,475.59
  5. Step 5: Solve for x
    x = 9,082,378,475.59/103,732.14
  6. Step 6: Final answer
    x = 87,556.07

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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.