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Finding the Fourth Proportional to 199,980.54, 300,053.61 and 87,602.70

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Solution

The fourth proportional to 199,980.54, 300,053.61 and 87,602.70 is: 131,440.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,980.54 : 300,053.61 = 87,602.70 : x
  2. Step 2: Convert to fraction form
    199,980.54/300,053.61 = 87,602.70/x
  3. Step 3: Cross multiply
    199,980.54x = 300,053.61 × 87,602.70
  4. Step 4: Simplify right side
    199,980.54x = 26,285,506,380.75
  5. Step 5: Solve for x
    x = 26,285,506,380.75/199,980.54
  6. Step 6: Final answer
    x = 131,440.32

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1.5x scale

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.