Home / 104,980.29-157,438.12-30,080.37

Finding the Fourth Proportional to 104,980.29, 157,438.12 and 30,080.37

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Solution

The fourth proportional to 104,980.29, 157,438.12 and 30,080.37 is: 45,111.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,980.29 : 157,438.12 = 30,080.37 : x
  2. Step 2: Convert to fraction form
    104,980.29/157,438.12 = 30,080.37/x
  3. Step 3: Cross multiply
    104,980.29x = 157,438.12 × 30,080.37
  4. Step 4: Simplify right side
    104,980.29x = 4,735,796,901.70
  5. Step 5: Solve for x
    x = 4,735,796,901.70/104,980.29
  6. Step 6: Final answer
    x = 45,111.30

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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.