Home / 172,090.50-257,582.97-91,928.04

Finding the Fourth Proportional to 172,090.50, 257,582.97 and 91,928.04

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Solution

The fourth proportional to 172,090.50, 257,582.97 and 91,928.04 is: 137,596.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,090.50 : 257,582.97 = 91,928.04 : x
  2. Step 2: Convert to fraction form
    172,090.50/257,582.97 = 91,928.04/x
  3. Step 3: Cross multiply
    172,090.50x = 257,582.97 × 91,928.04
  4. Step 4: Simplify right side
    172,090.50x = 23,679,097,569.48
  5. Step 5: Solve for x
    x = 23,679,097,569.48/172,090.50
  6. Step 6: Final answer
    x = 137,596.77

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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.