Home / 144,029.71-198,854.63-128,896.36

Finding the Fourth Proportional to 144,029.71, 198,854.63 and 128,896.36

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Solution

The fourth proportional to 144,029.71, 198,854.63 and 128,896.36 is: 177,960.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,029.71 : 198,854.63 = 128,896.36 : x
  2. Step 2: Convert to fraction form
    144,029.71/198,854.63 = 128,896.36/x
  3. Step 3: Cross multiply
    144,029.71x = 198,854.63 × 128,896.36
  4. Step 4: Simplify right side
    144,029.71x = 25,631,636,591.59
  5. Step 5: Solve for x
    x = 25,631,636,591.59/144,029.71
  6. Step 6: Final answer
    x = 177,960.76

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1.5x scale

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.