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Finding the Fourth Proportional to 133,037.40, 199,653.30 and 88,649.40

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Solution

The fourth proportional to 133,037.40, 199,653.30 and 88,649.40 is: 133,038.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,037.40 : 199,653.30 = 88,649.40 : x
  2. Step 2: Convert to fraction form
    133,037.40/199,653.30 = 88,649.40/x
  3. Step 3: Cross multiply
    133,037.40x = 199,653.30 × 88,649.40
  4. Step 4: Simplify right side
    133,037.40x = 17,699,145,253.02
  5. Step 5: Solve for x
    x = 17,699,145,253.02/133,037.40
  6. Step 6: Final answer
    x = 133,038.87

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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.