Home / 156,983.80-235,475.70-143,205.70

Finding the Fourth Proportional to 156,983.80, 235,475.70 and 143,205.70

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Solution

The fourth proportional to 156,983.80, 235,475.70 and 143,205.70 is: 214,808.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,983.80 : 235,475.70 = 143,205.70 : x
  2. Step 2: Convert to fraction form
    156,983.80/235,475.70 = 143,205.70/x
  3. Step 3: Cross multiply
    156,983.80x = 235,475.70 × 143,205.70
  4. Step 4: Simplify right side
    156,983.80x = 33,721,462,451.49
  5. Step 5: Solve for x
    x = 33,721,462,451.49/156,983.80
  6. Step 6: Final answer
    x = 214,808.55

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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.