Home / 220,835.10-304,650.54-130,129.14

Finding the Fourth Proportional to 220,835.10, 304,650.54 and 130,129.14

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Solution

The fourth proportional to 220,835.10, 304,650.54 and 130,129.14 is: 179,518.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,835.10 : 304,650.54 = 130,129.14 : x
  2. Step 2: Convert to fraction form
    220,835.10/304,650.54 = 130,129.14/x
  3. Step 3: Cross multiply
    220,835.10x = 304,650.54 × 130,129.14
  4. Step 4: Simplify right side
    220,835.10x = 39,643,912,770.74
  5. Step 5: Solve for x
    x = 39,643,912,770.74/220,835.10
  6. Step 6: Final answer
    x = 179,518.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.