Home / 106,521.62-159,783.66-31,639.95

Finding the Fourth Proportional to 106,521.62, 159,783.66 and 31,639.95

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Solution

The fourth proportional to 106,521.62, 159,783.66 and 31,639.95 is: 47,460.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,521.62 : 159,783.66 = 31,639.95 : x
  2. Step 2: Convert to fraction form
    106,521.62/159,783.66 = 31,639.95/x
  3. Step 3: Cross multiply
    106,521.62x = 159,783.66 × 31,639.95
  4. Step 4: Simplify right side
    106,521.62x = 5,055,547,013.22
  5. Step 5: Solve for x
    x = 5,055,547,013.22/106,521.62
  6. Step 6: Final answer
    x = 47,460.29

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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.