Home / 109,386.20-164,079.30-104,720.60

Finding the Fourth Proportional to 109,386.20, 164,079.30 and 104,720.60

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Solution

The fourth proportional to 109,386.20, 164,079.30 and 104,720.60 is: 157,080.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,386.20 : 164,079.30 = 104,720.60 : x
  2. Step 2: Convert to fraction form
    109,386.20/164,079.30 = 104,720.60/x
  3. Step 3: Cross multiply
    109,386.20x = 164,079.30 × 104,720.60
  4. Step 4: Simplify right side
    109,386.20x = 17,182,482,743.58
  5. Step 5: Solve for x
    x = 17,182,482,743.58/109,386.20
  6. Step 6: Final answer
    x = 157,080.90

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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.