Home / 103,699.30-155,447.82-56,271.52

Finding the Fourth Proportional to 103,699.30, 155,447.82 and 56,271.52

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Solution

The fourth proportional to 103,699.30, 155,447.82 and 56,271.52 is: 84,352.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,699.30 : 155,447.82 = 56,271.52 : x
  2. Step 2: Convert to fraction form
    103,699.30/155,447.82 = 56,271.52/x
  3. Step 3: Cross multiply
    103,699.30x = 155,447.82 × 56,271.52
  4. Step 4: Simplify right side
    103,699.30x = 8,747,285,112.09
  5. Step 5: Solve for x
    x = 8,747,285,112.09/103,699.30
  6. Step 6: Final answer
    x = 84,352.40

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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.