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Finding the Fourth Proportional to 99,042.60, 148,563.90 and 49,130.40

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Solution

The fourth proportional to 99,042.60, 148,563.90 and 49,130.40 is: 73,695.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,042.60 : 148,563.90 = 49,130.40 : x
  2. Step 2: Convert to fraction form
    99,042.60/148,563.90 = 49,130.40/x
  3. Step 3: Cross multiply
    99,042.60x = 148,563.90 × 49,130.40
  4. Step 4: Simplify right side
    99,042.60x = 7,299,003,832.56
  5. Step 5: Solve for x
    x = 7,299,003,832.56/99,042.60
  6. Step 6: Final answer
    x = 73,695.60

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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.