Home / 171,572.04-257,254.18-76,784.58

Finding the Fourth Proportional to 171,572.04, 257,254.18 and 76,784.58

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Solution

The fourth proportional to 171,572.04, 257,254.18 and 76,784.58 is: 115,130.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,572.04 : 257,254.18 = 76,784.58 : x
  2. Step 2: Convert to fraction form
    171,572.04/257,254.18 = 76,784.58/x
  3. Step 3: Cross multiply
    171,572.04x = 257,254.18 × 76,784.58
  4. Step 4: Simplify right side
    171,572.04x = 19,753,154,164.54
  5. Step 5: Solve for x
    x = 19,753,154,164.54/171,572.04
  6. Step 6: Final answer
    x = 115,130.38

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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.