Home / 139,979.97-193,053.38-118,282.50

Finding the Fourth Proportional to 139,979.97, 193,053.38 and 118,282.50

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Solution

The fourth proportional to 139,979.97, 193,053.38 and 118,282.50 is: 163,129.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,979.97 : 193,053.38 = 118,282.50 : x
  2. Step 2: Convert to fraction form
    139,979.97/193,053.38 = 118,282.50/x
  3. Step 3: Cross multiply
    139,979.97x = 193,053.38 × 118,282.50
  4. Step 4: Simplify right side
    139,979.97x = 22,834,835,828.44
  5. Step 5: Solve for x
    x = 22,834,835,828.44/139,979.97
  6. Step 6: Final answer
    x = 163,129.31

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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.