Home / 120,276.73-180,415.86-31,529.45

Finding the Fourth Proportional to 120,276.73, 180,415.86 and 31,529.45

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Solution

The fourth proportional to 120,276.73, 180,415.86 and 31,529.45 is: 47,294.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,276.73 : 180,415.86 = 31,529.45 : x
  2. Step 2: Convert to fraction form
    120,276.73/180,415.86 = 31,529.45/x
  3. Step 3: Cross multiply
    120,276.73x = 180,415.86 × 31,529.45
  4. Step 4: Simplify right side
    120,276.73x = 5,688,413,169.88
  5. Step 5: Solve for x
    x = 5,688,413,169.88/120,276.73
  6. Step 6: Final answer
    x = 47,294.38

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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.