Home / 142,575.03-196,751.16-78,911.46

Finding the Fourth Proportional to 142,575.03, 196,751.16 and 78,911.46

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Solution

The fourth proportional to 142,575.03, 196,751.16 and 78,911.46 is: 108,896.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,575.03 : 196,751.16 = 78,911.46 : x
  2. Step 2: Convert to fraction form
    142,575.03/196,751.16 = 78,911.46/x
  3. Step 3: Cross multiply
    142,575.03x = 196,751.16 × 78,911.46
  4. Step 4: Simplify right side
    142,575.03x = 15,525,921,292.29
  5. Step 5: Solve for x
    x = 15,525,921,292.29/142,575.03
  6. Step 6: Final answer
    x = 108,896.50

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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.