Home / 120,055.15-179,957.58-45,123.67

Finding the Fourth Proportional to 120,055.15, 179,957.58 and 45,123.67

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Solution

The fourth proportional to 120,055.15, 179,957.58 and 45,123.67 is: 67,638.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,055.15 : 179,957.58 = 45,123.67 : x
  2. Step 2: Convert to fraction form
    120,055.15/179,957.58 = 45,123.67/x
  3. Step 3: Cross multiply
    120,055.15x = 179,957.58 × 45,123.67
  4. Step 4: Simplify right side
    120,055.15x = 8,120,346,453.92
  5. Step 5: Solve for x
    x = 8,120,346,453.92/120,055.15
  6. Step 6: Final answer
    x = 67,638.47

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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.