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Finding the Fourth Proportional to 129,755.01, 179,068.05 and 73,165.17

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Solution

The fourth proportional to 129,755.01, 179,068.05 and 73,165.17 is: 100,971.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,755.01 : 179,068.05 = 73,165.17 : x
  2. Step 2: Convert to fraction form
    129,755.01/179,068.05 = 73,165.17/x
  3. Step 3: Cross multiply
    129,755.01x = 179,068.05 × 73,165.17
  4. Step 4: Simplify right side
    129,755.01x = 13,101,544,319.82
  5. Step 5: Solve for x
    x = 13,101,544,319.82/129,755.01
  6. Step 6: Final answer
    x = 100,971.39

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1.5x scale

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.