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Finding the Fourth Proportional to 118,571.60, 177,866.76 and 39,686.12

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Solution

The fourth proportional to 118,571.60, 177,866.76 and 39,686.12 is: 59,532.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,571.60 : 177,866.76 = 39,686.12 : x
  2. Step 2: Convert to fraction form
    118,571.60/177,866.76 = 39,686.12/x
  3. Step 3: Cross multiply
    118,571.60x = 177,866.76 × 39,686.12
  4. Step 4: Simplify right side
    118,571.60x = 7,058,841,581.37
  5. Step 5: Solve for x
    x = 7,058,841,581.37/118,571.60
  6. Step 6: Final answer
    x = 59,532.31

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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.