Home / 142,049.36-212,870.96-104,313.36

Finding the Fourth Proportional to 142,049.36, 212,870.96 and 104,313.36

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Solution

The fourth proportional to 142,049.36, 212,870.96 and 104,313.36 is: 156,320.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,049.36 : 212,870.96 = 104,313.36 : x
  2. Step 2: Convert to fraction form
    142,049.36/212,870.96 = 104,313.36/x
  3. Step 3: Cross multiply
    142,049.36x = 212,870.96 × 104,313.36
  4. Step 4: Simplify right side
    142,049.36x = 22,205,285,084.03
  5. Step 5: Solve for x
    x = 22,205,285,084.03/142,049.36
  6. Step 6: Final answer
    x = 156,320.91

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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.