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Finding the Fourth Proportional to 136,484.96, 188,341.46 and 75,218.98

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Solution

The fourth proportional to 136,484.96, 188,341.46 and 75,218.98 is: 103,797.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,484.96 : 188,341.46 = 75,218.98 : x
  2. Step 2: Convert to fraction form
    136,484.96/188,341.46 = 75,218.98/x
  3. Step 3: Cross multiply
    136,484.96x = 188,341.46 × 75,218.98
  4. Step 4: Simplify right side
    136,484.96x = 14,166,852,512.91
  5. Step 5: Solve for x
    x = 14,166,852,512.91/136,484.96
  6. Step 6: Final answer
    x = 103,797.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.