Home / 103,830.05-143,285.47-56,083.41

Finding the Fourth Proportional to 103,830.05, 143,285.47 and 56,083.41

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Solution

The fourth proportional to 103,830.05, 143,285.47 and 56,083.41 is: 77,395.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,830.05 : 143,285.47 = 56,083.41 : x
  2. Step 2: Convert to fraction form
    103,830.05/143,285.47 = 56,083.41/x
  3. Step 3: Cross multiply
    103,830.05x = 143,285.47 × 56,083.41
  4. Step 4: Simplify right side
    103,830.05x = 8,035,937,620.84
  5. Step 5: Solve for x
    x = 8,035,937,620.84/103,830.05
  6. Step 6: Final answer
    x = 77,395.10

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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.