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Finding the Fourth Proportional to 103,585.34, 142,958.75 and 63,322.67

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Solution

The fourth proportional to 103,585.34, 142,958.75 and 63,322.67 is: 87,391.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,585.34 : 142,958.75 = 63,322.67 : x
  2. Step 2: Convert to fraction form
    103,585.34/142,958.75 = 63,322.67/x
  3. Step 3: Cross multiply
    103,585.34x = 142,958.75 × 63,322.67
  4. Step 4: Simplify right side
    103,585.34x = 9,052,529,433.25
  5. Step 5: Solve for x
    x = 9,052,529,433.25/103,585.34
  6. Step 6: Final answer
    x = 87,391.99

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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.