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Finding the Fourth Proportional to 134,687.60, 202,012.20 and 45,945.20

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Solution

The fourth proportional to 134,687.60, 202,012.20 and 45,945.20 is: 68,911.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,687.60 : 202,012.20 = 45,945.20 : x
  2. Step 2: Convert to fraction form
    134,687.60/202,012.20 = 45,945.20/x
  3. Step 3: Cross multiply
    134,687.60x = 202,012.20 × 45,945.20
  4. Step 4: Simplify right side
    134,687.60x = 9,281,490,931.44
  5. Step 5: Solve for x
    x = 9,281,490,931.44/134,687.60
  6. Step 6: Final answer
    x = 68,911.25

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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.