Home / 120,507.40-180,810.66-53,004.70

Finding the Fourth Proportional to 120,507.40, 180,810.66 and 53,004.70

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Solution

The fourth proportional to 120,507.40, 180,810.66 and 53,004.70 is: 79,528.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,507.40 : 180,810.66 = 53,004.70 : x
  2. Step 2: Convert to fraction form
    120,507.40/180,810.66 = 53,004.70/x
  3. Step 3: Cross multiply
    120,507.40x = 180,810.66 × 53,004.70
  4. Step 4: Simplify right side
    120,507.40x = 9,583,814,790.10
  5. Step 5: Solve for x
    x = 9,583,814,790.10/120,507.40
  6. Step 6: Final answer
    x = 79,528.85

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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.