Home / 103,195.86-142,411.89-57,883.90

Finding the Fourth Proportional to 103,195.86, 142,411.89 and 57,883.90

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Solution

The fourth proportional to 103,195.86, 142,411.89 and 57,883.90 is: 79,880.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,195.86 : 142,411.89 = 57,883.90 : x
  2. Step 2: Convert to fraction form
    103,195.86/142,411.89 = 57,883.90/x
  3. Step 3: Cross multiply
    103,195.86x = 142,411.89 × 57,883.90
  4. Step 4: Simplify right side
    103,195.86x = 8,243,355,599.57
  5. Step 5: Solve for x
    x = 8,243,355,599.57/103,195.86
  6. Step 6: Final answer
    x = 79,880.68

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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.