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Finding the Fourth Proportional to 129,966, 179,353.08 and 70,350

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Solution

The fourth proportional to 129,966, 179,353.08 and 70,350 is: 97,083

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,966 : 179,353.08 = 70,350 : x
  2. Step 2: Convert to fraction form
    129,966/179,353.08 = 70,350/x
  3. Step 3: Cross multiply
    129,966x = 179,353.08 × 70,350
  4. Step 4: Simplify right side
    129,966x = 12,617,489,178
  5. Step 5: Solve for x
    x = 12,617,489,178/129,966
  6. Step 6: Final answer
    x = 97,083

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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.