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Finding the Fourth Proportional to 103,585.48, 143,489.35 and 101,485.96

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Solution

The fourth proportional to 103,585.48, 143,489.35 and 101,485.96 is: 140,581.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,585.48 : 143,489.35 = 101,485.96 : x
  2. Step 2: Convert to fraction form
    103,585.48/143,489.35 = 101,485.96/x
  3. Step 3: Cross multiply
    103,585.48x = 143,489.35 × 101,485.96
  4. Step 4: Simplify right side
    103,585.48x = 14,562,154,434.53
  5. Step 5: Solve for x
    x = 14,562,154,434.53/103,585.48
  6. Step 6: Final answer
    x = 140,581.04

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.