Home / 214,135.69-321,079.02-81,026.23

Finding the Fourth Proportional to 214,135.69, 321,079.02 and 81,026.23

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Solution

The fourth proportional to 214,135.69, 321,079.02 and 81,026.23 is: 121,492.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,135.69 : 321,079.02 = 81,026.23 : x
  2. Step 2: Convert to fraction form
    214,135.69/321,079.02 = 81,026.23/x
  3. Step 3: Cross multiply
    214,135.69x = 321,079.02 × 81,026.23
  4. Step 4: Simplify right side
    214,135.69x = 26,015,822,522.69
  5. Step 5: Solve for x
    x = 26,015,822,522.69/214,135.69
  6. Step 6: Final answer
    x = 121,492.23

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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.