Home / 156,498.32-234,346.80-86,299.76

Finding the Fourth Proportional to 156,498.32, 234,346.80 and 86,299.76

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Solution

The fourth proportional to 156,498.32, 234,346.80 and 86,299.76 is: 129,228.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,498.32 : 234,346.80 = 86,299.76 : x
  2. Step 2: Convert to fraction form
    156,498.32/234,346.80 = 86,299.76/x
  3. Step 3: Cross multiply
    156,498.32x = 234,346.80 × 86,299.76
  4. Step 4: Simplify right side
    156,498.32x = 20,224,072,596.77
  5. Step 5: Solve for x
    x = 20,224,072,596.77/156,498.32
  6. Step 6: Final answer
    x = 129,228.69

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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.