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Finding the Fourth Proportional to 118,539.40, 177,809.10 and 39,627.40

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Solution

The fourth proportional to 118,539.40, 177,809.10 and 39,627.40 is: 59,441.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,539.40 : 177,809.10 = 39,627.40 : x
  2. Step 2: Convert to fraction form
    118,539.40/177,809.10 = 39,627.40/x
  3. Step 3: Cross multiply
    118,539.40x = 177,809.10 × 39,627.40
  4. Step 4: Simplify right side
    118,539.40x = 7,046,112,329.34
  5. Step 5: Solve for x
    x = 7,046,112,329.34/118,539.40
  6. Step 6: Final answer
    x = 59,441.10

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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.