Home / 120,705.93-180,988.29-36,440.82

Finding the Fourth Proportional to 120,705.93, 180,988.29 and 36,440.82

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Solution

The fourth proportional to 120,705.93, 180,988.29 and 36,440.82 is: 54,639.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,705.93 : 180,988.29 = 36,440.82 : x
  2. Step 2: Convert to fraction form
    120,705.93/180,988.29 = 36,440.82/x
  3. Step 3: Cross multiply
    120,705.93x = 180,988.29 × 36,440.82
  4. Step 4: Simplify right side
    120,705.93x = 6,595,361,698.00
  5. Step 5: Solve for x
    x = 6,595,361,698.00/120,705.93
  6. Step 6: Final answer
    x = 54,639.91

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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.