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Finding the Fourth Proportional to 118,113.40, 177,194.40 and 39,284.20

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Solution

The fourth proportional to 118,113.40, 177,194.40 and 39,284.20 is: 58,934.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,113.40 : 177,194.40 = 39,284.20 : x
  2. Step 2: Convert to fraction form
    118,113.40/177,194.40 = 39,284.20/x
  3. Step 3: Cross multiply
    118,113.40x = 177,194.40 × 39,284.20
  4. Step 4: Simplify right side
    118,113.40x = 6,960,940,248.48
  5. Step 5: Solve for x
    x = 6,960,940,248.48/118,113.40
  6. Step 6: Final answer
    x = 58,934.38

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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.