Home / 186,142.32-257,031.54-172,634.88

Finding the Fourth Proportional to 186,142.32, 257,031.54 and 172,634.88

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Solution

The fourth proportional to 186,142.32, 257,031.54 and 172,634.88 is: 238,380.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,142.32 : 257,031.54 = 172,634.88 : x
  2. Step 2: Convert to fraction form
    186,142.32/257,031.54 = 172,634.88/x
  3. Step 3: Cross multiply
    186,142.32x = 257,031.54 × 172,634.88
  4. Step 4: Simplify right side
    186,142.32x = 44,372,609,064.12
  5. Step 5: Solve for x
    x = 44,372,609,064.12/186,142.32
  6. Step 6: Final answer
    x = 238,380.02

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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.