Home / 137,949.76-190,345.58-103,947.38

Finding the Fourth Proportional to 137,949.76, 190,345.58 and 103,947.38

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Solution

The fourth proportional to 137,949.76, 190,345.58 and 103,947.38 is: 143,428.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,949.76 : 190,345.58 = 103,947.38 : x
  2. Step 2: Convert to fraction form
    137,949.76/190,345.58 = 103,947.38/x
  3. Step 3: Cross multiply
    137,949.76x = 190,345.58 × 103,947.38
  4. Step 4: Simplify right side
    137,949.76x = 19,785,924,335.58
  5. Step 5: Solve for x
    x = 19,785,924,335.58/137,949.76
  6. Step 6: Final answer
    x = 143,428.48

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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.