Home / 162,301.78-243,445.36-109,016.21

Finding the Fourth Proportional to 162,301.78, 243,445.36 and 109,016.21

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Solution

The fourth proportional to 162,301.78, 243,445.36 and 109,016.21 is: 163,519.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,301.78 : 243,445.36 = 109,016.21 : x
  2. Step 2: Convert to fraction form
    162,301.78/243,445.36 = 109,016.21/x
  3. Step 3: Cross multiply
    162,301.78x = 243,445.36 × 109,016.21
  4. Step 4: Simplify right side
    162,301.78x = 26,539,489,272.06
  5. Step 5: Solve for x
    x = 26,539,489,272.06/162,301.78
  6. Step 6: Final answer
    x = 163,519.40

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1.5x scale

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.