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Finding the Fourth Proportional to 130,241, 179,732.70 and 70,625

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Solution

The fourth proportional to 130,241, 179,732.70 and 70,625 is: 97,462.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,241 : 179,732.70 = 70,625 : x
  2. Step 2: Convert to fraction form
    130,241/179,732.70 = 70,625/x
  3. Step 3: Cross multiply
    130,241x = 179,732.70 × 70,625
  4. Step 4: Simplify right side
    130,241x = 12,693,621,937.50
  5. Step 5: Solve for x
    x = 12,693,621,937.50/130,241
  6. Step 6: Final answer
    x = 97,462.57

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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.