Home / 140,284.64-210,492.56-81,170.04

Finding the Fourth Proportional to 140,284.64, 210,492.56 and 81,170.04

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Solution

The fourth proportional to 140,284.64, 210,492.56 and 81,170.04 is: 121,793.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,284.64 : 210,492.56 = 81,170.04 : x
  2. Step 2: Convert to fraction form
    140,284.64/210,492.56 = 81,170.04/x
  3. Step 3: Cross multiply
    140,284.64x = 210,492.56 × 81,170.04
  4. Step 4: Simplify right side
    140,284.64x = 17,085,689,514.90
  5. Step 5: Solve for x
    x = 17,085,689,514.90/140,284.64
  6. Step 6: Final answer
    x = 121,793.02

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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.