Home / 171,036.15-256,116.83-126,421.35

Finding the Fourth Proportional to 171,036.15, 256,116.83 and 126,421.35

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Solution

The fourth proportional to 171,036.15, 256,116.83 and 126,421.35 is: 189,308.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,036.15 : 256,116.83 = 126,421.35 : x
  2. Step 2: Convert to fraction form
    171,036.15/256,116.83 = 126,421.35/x
  3. Step 3: Cross multiply
    171,036.15x = 256,116.83 × 126,421.35
  4. Step 4: Simplify right side
    171,036.15x = 32,378,634,774.21
  5. Step 5: Solve for x
    x = 32,378,634,774.21/171,036.15
  6. Step 6: Final answer
    x = 189,308.72

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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.