Home / 103,946.67-143,436.33-58,631.76

Finding the Fourth Proportional to 103,946.67, 143,436.33 and 58,631.76

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Solution

The fourth proportional to 103,946.67, 143,436.33 and 58,631.76 is: 80,906.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,946.67 : 143,436.33 = 58,631.76 : x
  2. Step 2: Convert to fraction form
    103,946.67/143,436.33 = 58,631.76/x
  3. Step 3: Cross multiply
    103,946.67x = 143,436.33 × 58,631.76
  4. Step 4: Simplify right side
    103,946.67x = 8,409,924,475.84
  5. Step 5: Solve for x
    x = 8,409,924,475.84/103,946.67
  6. Step 6: Final answer
    x = 80,906.15

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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.