Home / 142,610.63-196,802.66-78,952.52

Finding the Fourth Proportional to 142,610.63, 196,802.66 and 78,952.52

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Solution

The fourth proportional to 142,610.63, 196,802.66 and 78,952.52 is: 108,954.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,610.63 : 196,802.66 = 78,952.52 : x
  2. Step 2: Convert to fraction form
    142,610.63/196,802.66 = 78,952.52/x
  3. Step 3: Cross multiply
    142,610.63x = 196,802.66 × 78,952.52
  4. Step 4: Simplify right side
    142,610.63x = 15,538,066,639.09
  5. Step 5: Solve for x
    x = 15,538,066,639.09/142,610.63
  6. Step 6: Final answer
    x = 108,954.48

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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.