Home / 104,135.61-143,707.22-56,389.00

Finding the Fourth Proportional to 104,135.61, 143,707.22 and 56,389.00

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Solution

The fourth proportional to 104,135.61, 143,707.22 and 56,389.00 is: 77,816.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,135.61 : 143,707.22 = 56,389.00 : x
  2. Step 2: Convert to fraction form
    104,135.61/143,707.22 = 56,389.00/x
  3. Step 3: Cross multiply
    104,135.61x = 143,707.22 × 56,389.00
  4. Step 4: Simplify right side
    104,135.61x = 8,103,505,428.10
  5. Step 5: Solve for x
    x = 8,103,505,428.10/104,135.61
  6. Step 6: Final answer
    x = 77,816.85

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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.