Home / 118,851.32-178,278.42-39,965.24

Finding the Fourth Proportional to 118,851.32, 178,278.42 and 39,965.24

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Solution

The fourth proportional to 118,851.32, 178,278.42 and 39,965.24 is: 59,948.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,851.32 : 178,278.42 = 39,965.24 : x
  2. Step 2: Convert to fraction form
    118,851.32/178,278.42 = 39,965.24/x
  3. Step 3: Cross multiply
    118,851.32x = 178,278.42 × 39,965.24
  4. Step 4: Simplify right side
    118,851.32x = 7,124,939,842.12
  5. Step 5: Solve for x
    x = 7,124,939,842.12/118,851.32
  6. Step 6: Final answer
    x = 59,948.34

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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.