Home / 120,295.90-180,485.70-53,729.56

Finding the Fourth Proportional to 120,295.90, 180,485.70 and 53,729.56

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Solution

The fourth proportional to 120,295.90, 180,485.70 and 53,729.56 is: 80,613.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,295.90 : 180,485.70 = 53,729.56 : x
  2. Step 2: Convert to fraction form
    120,295.90/180,485.70 = 53,729.56/x
  3. Step 3: Cross multiply
    120,295.90x = 180,485.70 × 53,729.56
  4. Step 4: Simplify right side
    120,295.90x = 9,697,417,247.29
  5. Step 5: Solve for x
    x = 9,697,417,247.29/120,295.90
  6. Step 6: Final answer
    x = 80,613.03

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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.