Home / 232,699.30-321,132.64-130,742.90

Finding the Fourth Proportional to 232,699.30, 321,132.64 and 130,742.90

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Solution

The fourth proportional to 232,699.30, 321,132.64 and 130,742.90 is: 180,429.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,699.30 : 321,132.64 = 130,742.90 : x
  2. Step 2: Convert to fraction form
    232,699.30/321,132.64 = 130,742.90/x
  3. Step 3: Cross multiply
    232,699.30x = 321,132.64 × 130,742.90
  4. Step 4: Simplify right side
    232,699.30x = 41,985,812,638.26
  5. Step 5: Solve for x
    x = 41,985,812,638.26/232,699.30
  6. Step 6: Final answer
    x = 180,429.48

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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.