Home / 103,166.15-154,718.38-31,116.04

Finding the Fourth Proportional to 103,166.15, 154,718.38 and 31,116.04

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Solution

The fourth proportional to 103,166.15, 154,718.38 and 31,116.04 is: 46,664.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,166.15 : 154,718.38 = 31,116.04 : x
  2. Step 2: Convert to fraction form
    103,166.15/154,718.38 = 31,116.04/x
  3. Step 3: Cross multiply
    103,166.15x = 154,718.38 × 31,116.04
  4. Step 4: Simplify right side
    103,166.15x = 4,814,222,836.23
  5. Step 5: Solve for x
    x = 4,814,222,836.23/103,166.15
  6. Step 6: Final answer
    x = 46,664.75

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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.