Home / 236,141.40-354,212.10-129,853.20

Finding the Fourth Proportional to 236,141.40, 354,212.10 and 129,853.20

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Solution

The fourth proportional to 236,141.40, 354,212.10 and 129,853.20 is: 194,779.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,141.40 : 354,212.10 = 129,853.20 : x
  2. Step 2: Convert to fraction form
    236,141.40/354,212.10 = 129,853.20/x
  3. Step 3: Cross multiply
    236,141.40x = 354,212.10 × 129,853.20
  4. Step 4: Simplify right side
    236,141.40x = 45,995,574,663.72
  5. Step 5: Solve for x
    x = 45,995,574,663.72/236,141.40
  6. Step 6: Final answer
    x = 194,779.80

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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.