Home / 110,109.60-151,975.44-72,387.36

Finding the Fourth Proportional to 110,109.60, 151,975.44 and 72,387.36

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Solution

The fourth proportional to 110,109.60, 151,975.44 and 72,387.36 is: 99,910.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,109.60 : 151,975.44 = 72,387.36 : x
  2. Step 2: Convert to fraction form
    110,109.60/151,975.44 = 72,387.36/x
  3. Step 3: Cross multiply
    110,109.60x = 151,975.44 × 72,387.36
  4. Step 4: Simplify right side
    110,109.60x = 11,001,100,886.44
  5. Step 5: Solve for x
    x = 11,001,100,886.44/110,109.60
  6. Step 6: Final answer
    x = 99,910.46

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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.