Home / 142,697.03-196,923.35-86,097.47

Finding the Fourth Proportional to 142,697.03, 196,923.35 and 86,097.47

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Solution

The fourth proportional to 142,697.03, 196,923.35 and 86,097.47 is: 118,815.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,697.03 : 196,923.35 = 86,097.47 : x
  2. Step 2: Convert to fraction form
    142,697.03/196,923.35 = 86,097.47/x
  3. Step 3: Cross multiply
    142,697.03x = 196,923.35 × 86,097.47
  4. Step 4: Simplify right side
    142,697.03x = 16,954,600,803.82
  5. Step 5: Solve for x
    x = 16,954,600,803.82/142,697.03
  6. Step 6: Final answer
    x = 118,815.38

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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.