Home / 110,115.22-151,980.30-71,808.26

Finding the Fourth Proportional to 110,115.22, 151,980.30 and 71,808.26

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Solution

The fourth proportional to 110,115.22, 151,980.30 and 71,808.26 is: 99,109.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,115.22 : 151,980.30 = 71,808.26 : x
  2. Step 2: Convert to fraction form
    110,115.22/151,980.30 = 71,808.26/x
  3. Step 3: Cross multiply
    110,115.22x = 151,980.30 × 71,808.26
  4. Step 4: Simplify right side
    110,115.22x = 10,913,440,897.28
  5. Step 5: Solve for x
    x = 10,913,440,897.28/110,115.22
  6. Step 6: Final answer
    x = 99,109.29

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1.5x scale

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.