Home / 103,400.82-155,102.02-56,628.18

Finding the Fourth Proportional to 103,400.82, 155,102.02 and 56,628.18

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Solution

The fourth proportional to 103,400.82, 155,102.02 and 56,628.18 is: 84,942.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,400.82 : 155,102.02 = 56,628.18 : x
  2. Step 2: Convert to fraction form
    103,400.82/155,102.02 = 56,628.18/x
  3. Step 3: Cross multiply
    103,400.82x = 155,102.02 × 56,628.18
  4. Step 4: Simplify right side
    103,400.82x = 8,783,145,106.92
  5. Step 5: Solve for x
    x = 8,783,145,106.92/103,400.82
  6. Step 6: Final answer
    x = 84,942.70

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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.