Home / 120,641.43-180,922.52-40,657.94

Finding the Fourth Proportional to 120,641.43, 180,922.52 and 40,657.94

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Solution

The fourth proportional to 120,641.43, 180,922.52 and 40,657.94 is: 60,973.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,641.43 : 180,922.52 = 40,657.94 : x
  2. Step 2: Convert to fraction form
    120,641.43/180,922.52 = 40,657.94/x
  3. Step 3: Cross multiply
    120,641.43x = 180,922.52 × 40,657.94
  4. Step 4: Simplify right side
    120,641.43x = 7,355,936,159.84
  5. Step 5: Solve for x
    x = 7,355,936,159.84/120,641.43
  6. Step 6: Final answer
    x = 60,973.55

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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.