Home / 142,673.22-196,873.08-78,995.04

Finding the Fourth Proportional to 142,673.22, 196,873.08 and 78,995.04

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Solution

The fourth proportional to 142,673.22, 196,873.08 and 78,995.04 is: 109,004.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,673.22 : 196,873.08 = 78,995.04 : x
  2. Step 2: Convert to fraction form
    142,673.22/196,873.08 = 78,995.04/x
  3. Step 3: Cross multiply
    142,673.22x = 196,873.08 × 78,995.04
  4. Step 4: Simplify right side
    142,673.22x = 15,551,996,829.52
  5. Step 5: Solve for x
    x = 15,551,996,829.52/142,673.22
  6. Step 6: Final answer
    x = 109,004.32

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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.