Home / 137,896.92-190,171.31-89,448.35

Finding the Fourth Proportional to 137,896.92, 190,171.31 and 89,448.35

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Solution

The fourth proportional to 137,896.92, 190,171.31 and 89,448.35 is: 123,356.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,896.92 : 190,171.31 = 89,448.35 : x
  2. Step 2: Convert to fraction form
    137,896.92/190,171.31 = 89,448.35/x
  3. Step 3: Cross multiply
    137,896.92x = 190,171.31 × 89,448.35
  4. Step 4: Simplify right side
    137,896.92x = 17,010,508,498.74
  5. Step 5: Solve for x
    x = 17,010,508,498.74/137,896.92
  6. Step 6: Final answer
    x = 123,356.70

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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.