Home / 118,278.40-177,445.96-39,393.32

Finding the Fourth Proportional to 118,278.40, 177,445.96 and 39,393.32

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Solution

The fourth proportional to 118,278.40, 177,445.96 and 39,393.32 is: 59,099.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,278.40 : 177,445.96 = 39,393.32 : x
  2. Step 2: Convert to fraction form
    118,278.40/177,445.96 = 39,393.32/x
  3. Step 3: Cross multiply
    118,278.40x = 177,445.96 × 39,393.32
  4. Step 4: Simplify right side
    118,278.40x = 6,990,185,484.99
  5. Step 5: Solve for x
    x = 6,990,185,484.99/118,278.40
  6. Step 6: Final answer
    x = 59,099.43

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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.