Home / 170,721.60-255,736.80-118,190.40

Finding the Fourth Proportional to 170,721.60, 255,736.80 and 118,190.40

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Solution

The fourth proportional to 170,721.60, 255,736.80 and 118,190.40 is: 177,046.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,721.60 : 255,736.80 = 118,190.40 : x
  2. Step 2: Convert to fraction form
    170,721.60/255,736.80 = 118,190.40/x
  3. Step 3: Cross multiply
    170,721.60x = 255,736.80 × 118,190.40
  4. Step 4: Simplify right side
    170,721.60x = 30,225,634,686.72
  5. Step 5: Solve for x
    x = 30,225,634,686.72/170,721.60
  6. Step 6: Final answer
    x = 177,046.34

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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.