Home / 99,809.16-137,764.44-57,381.36

Finding the Fourth Proportional to 99,809.16, 137,764.44 and 57,381.36

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Solution

The fourth proportional to 99,809.16, 137,764.44 and 57,381.36 is: 79,202.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,809.16 : 137,764.44 = 57,381.36 : x
  2. Step 2: Convert to fraction form
    99,809.16/137,764.44 = 57,381.36/x
  3. Step 3: Cross multiply
    99,809.16x = 137,764.44 × 57,381.36
  4. Step 4: Simplify right side
    99,809.16x = 7,905,110,926.84
  5. Step 5: Solve for x
    x = 7,905,110,926.84/99,809.16
  6. Step 6: Final answer
    x = 79,202.26

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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.