Home / 170,782.60-235,661.80-99,149.23

Finding the Fourth Proportional to 170,782.60, 235,661.80 and 99,149.23

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Solution

The fourth proportional to 170,782.60, 235,661.80 and 99,149.23 is: 136,815.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,782.60 : 235,661.80 = 99,149.23 : x
  2. Step 2: Convert to fraction form
    170,782.60/235,661.80 = 99,149.23/x
  3. Step 3: Cross multiply
    170,782.60x = 235,661.80 × 99,149.23
  4. Step 4: Simplify right side
    170,782.60x = 23,365,686,010.41
  5. Step 5: Solve for x
    x = 23,365,686,010.41/170,782.60
  6. Step 6: Final answer
    x = 136,815.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.