Home / 292,080.20-438,047.40-112,126.55

Finding the Fourth Proportional to 292,080.20, 438,047.40 and 112,126.55

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Solution

The fourth proportional to 292,080.20, 438,047.40 and 112,126.55 is: 168,161.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,080.20 : 438,047.40 = 112,126.55 : x
  2. Step 2: Convert to fraction form
    292,080.20/438,047.40 = 112,126.55/x
  3. Step 3: Cross multiply
    292,080.20x = 438,047.40 × 112,126.55
  4. Step 4: Simplify right side
    292,080.20x = 49,116,743,698.47
  5. Step 5: Solve for x
    x = 49,116,743,698.47/292,080.20
  6. Step 6: Final answer
    x = 168,161.84

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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.