Home / 118,137.12-177,139.84-39,208.20

Finding the Fourth Proportional to 118,137.12, 177,139.84 and 39,208.20

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Solution

The fourth proportional to 118,137.12, 177,139.84 and 39,208.20 is: 58,790.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,137.12 : 177,139.84 = 39,208.20 : x
  2. Step 2: Convert to fraction form
    118,137.12/177,139.84 = 39,208.20/x
  3. Step 3: Cross multiply
    118,137.12x = 177,139.84 × 39,208.20
  4. Step 4: Simplify right side
    118,137.12x = 6,945,334,274.69
  5. Step 5: Solve for x
    x = 6,945,334,274.69/118,137.12
  6. Step 6: Final answer
    x = 58,790.45

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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.