Home / 156,496.32-234,343.80-86,297.76

Finding the Fourth Proportional to 156,496.32, 234,343.80 and 86,297.76

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Solution

The fourth proportional to 156,496.32, 234,343.80 and 86,297.76 is: 129,225.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,496.32 : 234,343.80 = 86,297.76 : x
  2. Step 2: Convert to fraction form
    156,496.32/234,343.80 = 86,297.76/x
  3. Step 3: Cross multiply
    156,496.32x = 234,343.80 × 86,297.76
  4. Step 4: Simplify right side
    156,496.32x = 20,223,345,009.89
  5. Step 5: Solve for x
    x = 20,223,345,009.89/156,496.32
  6. Step 6: Final answer
    x = 129,225.69

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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.