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Finding the Fourth Proportional to 134,089.84, 185,038 and 80,404.48

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Solution

The fourth proportional to 134,089.84, 185,038 and 80,404.48 is: 110,954.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,089.84 : 185,038 = 80,404.48 : x
  2. Step 2: Convert to fraction form
    134,089.84/185,038 = 80,404.48/x
  3. Step 3: Cross multiply
    134,089.84x = 185,038 × 80,404.48
  4. Step 4: Simplify right side
    134,089.84x = 14,877,884,170.24
  5. Step 5: Solve for x
    x = 14,877,884,170.24/134,089.84
  6. Step 6: Final answer
    x = 110,954.60

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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.