Home / 153,800.20-230,618.04-78,889.72

Finding the Fourth Proportional to 153,800.20, 230,618.04 and 78,889.72

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Solution

The fourth proportional to 153,800.20, 230,618.04 and 78,889.72 is: 118,292.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,800.20 : 230,618.04 = 78,889.72 : x
  2. Step 2: Convert to fraction form
    153,800.20/230,618.04 = 78,889.72/x
  3. Step 3: Cross multiply
    153,800.20x = 230,618.04 × 78,889.72
  4. Step 4: Simplify right side
    153,800.20x = 18,193,392,602.55
  5. Step 5: Solve for x
    x = 18,193,392,602.55/153,800.20
  6. Step 6: Final answer
    x = 118,292.39

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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.