Home / 315,870.19-473,735.70-91,181.82

Finding the Fourth Proportional to 315,870.19, 473,735.70 and 91,181.82

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Solution

The fourth proportional to 315,870.19, 473,735.70 and 91,181.82 is: 136,752.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,870.19 : 473,735.70 = 91,181.82 : x
  2. Step 2: Convert to fraction form
    315,870.19/473,735.70 = 91,181.82/x
  3. Step 3: Cross multiply
    315,870.19x = 473,735.70 × 91,181.82
  4. Step 4: Simplify right side
    315,870.19x = 43,196,083,324.97
  5. Step 5: Solve for x
    x = 43,196,083,324.97/315,870.19
  6. Step 6: Final answer
    x = 136,752.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.