Home / 103,948.98-143,449.79-56,202.32

Finding the Fourth Proportional to 103,948.98, 143,449.79 and 56,202.32

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Solution

The fourth proportional to 103,948.98, 143,449.79 and 56,202.32 is: 77,559.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,948.98 : 143,449.79 = 56,202.32 : x
  2. Step 2: Convert to fraction form
    103,948.98/143,449.79 = 56,202.32/x
  3. Step 3: Cross multiply
    103,948.98x = 143,449.79 × 56,202.32
  4. Step 4: Simplify right side
    103,948.98x = 8,062,211,001.51
  5. Step 5: Solve for x
    x = 8,062,211,001.51/103,948.98
  6. Step 6: Final answer
    x = 77,559.31

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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.