Home / 103,975.79-143,485.83-58,654.13

Finding the Fourth Proportional to 103,975.79, 143,485.83 and 58,654.13

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Solution

The fourth proportional to 103,975.79, 143,485.83 and 58,654.13 is: 80,942.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,975.79 : 143,485.83 = 58,654.13 : x
  2. Step 2: Convert to fraction form
    103,975.79/143,485.83 = 58,654.13/x
  3. Step 3: Cross multiply
    103,975.79x = 143,485.83 × 58,654.13
  4. Step 4: Simplify right side
    103,975.79x = 8,416,035,808.55
  5. Step 5: Solve for x
    x = 8,416,035,808.55/103,975.79
  6. Step 6: Final answer
    x = 80,942.27

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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.