Home / 156,042.20-234,063.30-77,310.20

Finding the Fourth Proportional to 156,042.20, 234,063.30 and 77,310.20

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Solution

The fourth proportional to 156,042.20, 234,063.30 and 77,310.20 is: 115,965.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,042.20 : 234,063.30 = 77,310.20 : x
  2. Step 2: Convert to fraction form
    156,042.20/234,063.30 = 77,310.20/x
  3. Step 3: Cross multiply
    156,042.20x = 234,063.30 × 77,310.20
  4. Step 4: Simplify right side
    156,042.20x = 18,095,480,535.66
  5. Step 5: Solve for x
    x = 18,095,480,535.66/156,042.20
  6. Step 6: Final answer
    x = 115,965.30

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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.