Home / 160,987.44-222,117.63-100,619.42

Finding the Fourth Proportional to 160,987.44, 222,117.63 and 100,619.42

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Solution

The fourth proportional to 160,987.44, 222,117.63 and 100,619.42 is: 138,826.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,987.44 : 222,117.63 = 100,619.42 : x
  2. Step 2: Convert to fraction form
    160,987.44/222,117.63 = 100,619.42/x
  3. Step 3: Cross multiply
    160,987.44x = 222,117.63 × 100,619.42
  4. Step 4: Simplify right side
    160,987.44x = 22,349,345,991.79
  5. Step 5: Solve for x
    x = 22,349,345,991.79/160,987.44
  6. Step 6: Final answer
    x = 138,826.64

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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.