Home / 142,409.87-196,458.69-101,583.01

Finding the Fourth Proportional to 142,409.87, 196,458.69 and 101,583.01

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Solution

The fourth proportional to 142,409.87, 196,458.69 and 101,583.01 is: 140,136.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,409.87 : 196,458.69 = 101,583.01 : x
  2. Step 2: Convert to fraction form
    142,409.87/196,458.69 = 101,583.01/x
  3. Step 3: Cross multiply
    142,409.87x = 196,458.69 × 101,583.01
  4. Step 4: Simplify right side
    142,409.87x = 19,956,865,697.37
  5. Step 5: Solve for x
    x = 19,956,865,697.37/142,409.87
  6. Step 6: Final answer
    x = 140,136.82

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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.