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Finding the Fourth Proportional to 98,285.78, 147,450.54 and 28,159.63

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Solution

The fourth proportional to 98,285.78, 147,450.54 and 28,159.63 is: 42,245.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,285.78 : 147,450.54 = 28,159.63 : x
  2. Step 2: Convert to fraction form
    98,285.78/147,450.54 = 28,159.63/x
  3. Step 3: Cross multiply
    98,285.78x = 147,450.54 × 28,159.63
  4. Step 4: Simplify right side
    98,285.78x = 4,152,152,649.70
  5. Step 5: Solve for x
    x = 4,152,152,649.70/98,285.78
  6. Step 6: Final answer
    x = 42,245.71

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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.