Home / 120,353.51-180,538.46-31,606.86

Finding the Fourth Proportional to 120,353.51, 180,538.46 and 31,606.86

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Solution

The fourth proportional to 120,353.51, 180,538.46 and 31,606.86 is: 47,412.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,353.51 : 180,538.46 = 31,606.86 : x
  2. Step 2: Convert to fraction form
    120,353.51/180,538.46 = 31,606.86/x
  3. Step 3: Cross multiply
    120,353.51x = 180,538.46 × 31,606.86
  4. Step 4: Simplify right side
    120,353.51x = 5,706,253,671.80
  5. Step 5: Solve for x
    x = 5,706,253,671.80/120,353.51
  6. Step 6: Final answer
    x = 47,412.44

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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.