Home / 214,646.12-321,938.18-72,465.60

Finding the Fourth Proportional to 214,646.12, 321,938.18 and 72,465.60

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Solution

The fourth proportional to 214,646.12, 321,938.18 and 72,465.60 is: 108,687.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,646.12 : 321,938.18 = 72,465.60 : x
  2. Step 2: Convert to fraction form
    214,646.12/321,938.18 = 72,465.60/x
  3. Step 3: Cross multiply
    214,646.12x = 321,938.18 × 72,465.60
  4. Step 4: Simplify right side
    214,646.12x = 23,329,443,376.61
  5. Step 5: Solve for x
    x = 23,329,443,376.61/214,646.12
  6. Step 6: Final answer
    x = 108,687.93

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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.