Home / 191,731.20-287,596.80-162,206.70

Finding the Fourth Proportional to 191,731.20, 287,596.80 and 162,206.70

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Solution

The fourth proportional to 191,731.20, 287,596.80 and 162,206.70 is: 243,310.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,731.20 : 287,596.80 = 162,206.70 : x
  2. Step 2: Convert to fraction form
    191,731.20/287,596.80 = 162,206.70/x
  3. Step 3: Cross multiply
    191,731.20x = 287,596.80 × 162,206.70
  4. Step 4: Simplify right side
    191,731.20x = 46,650,127,858.56
  5. Step 5: Solve for x
    x = 46,650,127,858.56/191,731.20
  6. Step 6: Final answer
    x = 243,310.05

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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.