Home / 156,923.46-216,553.02-85,303.26

Finding the Fourth Proportional to 156,923.46, 216,553.02 and 85,303.26

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Solution

The fourth proportional to 156,923.46, 216,553.02 and 85,303.26 is: 117,717.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,923.46 : 216,553.02 = 85,303.26 : x
  2. Step 2: Convert to fraction form
    156,923.46/216,553.02 = 85,303.26/x
  3. Step 3: Cross multiply
    156,923.46x = 216,553.02 × 85,303.26
  4. Step 4: Simplify right side
    156,923.46x = 18,472,678,568.85
  5. Step 5: Solve for x
    x = 18,472,678,568.85/156,923.46
  6. Step 6: Final answer
    x = 117,717.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.