Home / 142,488.44-196,628.14-77,957.36

Finding the Fourth Proportional to 142,488.44, 196,628.14 and 77,957.36

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Solution

The fourth proportional to 142,488.44, 196,628.14 and 77,957.36 is: 107,577.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,488.44 : 196,628.14 = 77,957.36 : x
  2. Step 2: Convert to fraction form
    142,488.44/196,628.14 = 77,957.36/x
  3. Step 3: Cross multiply
    142,488.44x = 196,628.14 × 77,957.36
  4. Step 4: Simplify right side
    142,488.44x = 15,328,610,696.11
  5. Step 5: Solve for x
    x = 15,328,610,696.11/142,488.44
  6. Step 6: Final answer
    x = 107,577.92

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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.