Home / 102,405.38-153,625.67-31,326.32

Finding the Fourth Proportional to 102,405.38, 153,625.67 and 31,326.32

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Solution

The fourth proportional to 102,405.38, 153,625.67 and 31,326.32 is: 46,994.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,405.38 : 153,625.67 = 31,326.32 : x
  2. Step 2: Convert to fraction form
    102,405.38/153,625.67 = 31,326.32/x
  3. Step 3: Cross multiply
    102,405.38x = 153,625.67 × 31,326.32
  4. Step 4: Simplify right side
    102,405.38x = 4,812,525,973.87
  5. Step 5: Solve for x
    x = 4,812,525,973.87/102,405.38
  6. Step 6: Final answer
    x = 46,994.86

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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.