Home / 143,631.36-215,153.28-117,072

Finding the Fourth Proportional to 143,631.36, 215,153.28 and 117,072

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Solution

The fourth proportional to 143,631.36, 215,153.28 and 117,072 is: 175,368.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,631.36 : 215,153.28 = 117,072 : x
  2. Step 2: Convert to fraction form
    143,631.36/215,153.28 = 117,072/x
  3. Step 3: Cross multiply
    143,631.36x = 215,153.28 × 117,072
  4. Step 4: Simplify right side
    143,631.36x = 25,188,424,796.16
  5. Step 5: Solve for x
    x = 25,188,424,796.16/143,631.36
  6. Step 6: Final answer
    x = 175,368.56

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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.