Home / 188,065.76-259,547.12-103,199.36

Finding the Fourth Proportional to 188,065.76, 259,547.12 and 103,199.36

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Solution

The fourth proportional to 188,065.76, 259,547.12 and 103,199.36 is: 142,424.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,065.76 : 259,547.12 = 103,199.36 : x
  2. Step 2: Convert to fraction form
    188,065.76/259,547.12 = 103,199.36/x
  3. Step 3: Cross multiply
    188,065.76x = 259,547.12 × 103,199.36
  4. Step 4: Simplify right side
    188,065.76x = 26,785,096,673.84
  5. Step 5: Solve for x
    x = 26,785,096,673.84/188,065.76
  6. Step 6: Final answer
    x = 142,424.10

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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.