Home / 120,042.32-180,063.56-31,295.60

Finding the Fourth Proportional to 120,042.32, 180,063.56 and 31,295.60

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Solution

The fourth proportional to 120,042.32, 180,063.56 and 31,295.60 is: 46,943.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,042.32 : 180,063.56 = 31,295.60 : x
  2. Step 2: Convert to fraction form
    120,042.32/180,063.56 = 31,295.60/x
  3. Step 3: Cross multiply
    120,042.32x = 180,063.56 × 31,295.60
  4. Step 4: Simplify right side
    120,042.32x = 5,635,197,148.34
  5. Step 5: Solve for x
    x = 5,635,197,148.34/120,042.32
  6. Step 6: Final answer
    x = 46,943.42

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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.