Home / 236,461.20-354,605.40-78,694.80

Finding the Fourth Proportional to 236,461.20, 354,605.40 and 78,694.80

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Solution

The fourth proportional to 236,461.20, 354,605.40 and 78,694.80 is: 118,013.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,461.20 : 354,605.40 = 78,694.80 : x
  2. Step 2: Convert to fraction form
    236,461.20/354,605.40 = 78,694.80/x
  3. Step 3: Cross multiply
    236,461.20x = 354,605.40 × 78,694.80
  4. Step 4: Simplify right side
    236,461.20x = 27,905,601,031.92
  5. Step 5: Solve for x
    x = 27,905,601,031.92/236,461.20
  6. Step 6: Final answer
    x = 118,013.45

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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.