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Finding the Fourth Proportional to 129,937.94, 179,314.37 and 70,321.94

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Solution

The fourth proportional to 129,937.94, 179,314.37 and 70,321.94 is: 97,044.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,937.94 : 179,314.37 = 70,321.94 : x
  2. Step 2: Convert to fraction form
    129,937.94/179,314.37 = 70,321.94/x
  3. Step 3: Cross multiply
    129,937.94x = 179,314.37 × 70,321.94
  4. Step 4: Simplify right side
    129,937.94x = 12,609,734,368.28
  5. Step 5: Solve for x
    x = 12,609,734,368.28/129,937.94
  6. Step 6: Final answer
    x = 97,044.28

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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.