Home / 120,182.03-180,145.93-45,269.77

Finding the Fourth Proportional to 120,182.03, 180,145.93 and 45,269.77

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Solution

The fourth proportional to 120,182.03, 180,145.93 and 45,269.77 is: 67,856.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,182.03 : 180,145.93 = 45,269.77 : x
  2. Step 2: Convert to fraction form
    120,182.03/180,145.93 = 45,269.77/x
  3. Step 3: Cross multiply
    120,182.03x = 180,145.93 × 45,269.77
  4. Step 4: Simplify right side
    120,182.03x = 8,155,163,803.63
  5. Step 5: Solve for x
    x = 8,155,163,803.63/120,182.03
  6. Step 6: Final answer
    x = 67,856.76

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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.