Home / 120,327.76-180,595.32-83,417.68

Finding the Fourth Proportional to 120,327.76, 180,595.32 and 83,417.68

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Solution

The fourth proportional to 120,327.76, 180,595.32 and 83,417.68 is: 125,198.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,327.76 : 180,595.32 = 83,417.68 : x
  2. Step 2: Convert to fraction form
    120,327.76/180,595.32 = 83,417.68/x
  3. Step 3: Cross multiply
    120,327.76x = 180,595.32 × 83,417.68
  4. Step 4: Simplify right side
    120,327.76x = 15,064,842,613.26
  5. Step 5: Solve for x
    x = 15,064,842,613.26/120,327.76
  6. Step 6: Final answer
    x = 125,198.40

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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.