Home / 103,628.60-155,524.92-40,478.98

Finding the Fourth Proportional to 103,628.60, 155,524.92 and 40,478.98

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Solution

The fourth proportional to 103,628.60, 155,524.92 and 40,478.98 is: 60,750.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,628.60 : 155,524.92 = 40,478.98 : x
  2. Step 2: Convert to fraction form
    103,628.60/155,524.92 = 40,478.98/x
  3. Step 3: Cross multiply
    103,628.60x = 155,524.92 × 40,478.98
  4. Step 4: Simplify right side
    103,628.60x = 6,295,490,126.18
  5. Step 5: Solve for x
    x = 6,295,490,126.18/103,628.60
  6. Step 6: Final answer
    x = 60,750.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.