Home / 156,780.70-235,171.05-51,574.30

Finding the Fourth Proportional to 156,780.70, 235,171.05 and 51,574.30

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Solution

The fourth proportional to 156,780.70, 235,171.05 and 51,574.30 is: 77,361.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,780.70 : 235,171.05 = 51,574.30 : x
  2. Step 2: Convert to fraction form
    156,780.70/235,171.05 = 51,574.30/x
  3. Step 3: Cross multiply
    156,780.70x = 235,171.05 × 51,574.30
  4. Step 4: Simplify right side
    156,780.70x = 12,128,782,284.02
  5. Step 5: Solve for x
    x = 12,128,782,284.02/156,780.70
  6. Step 6: Final answer
    x = 77,361.45

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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.