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Finding the Fourth Proportional to 103,627, 143,005.26 and 58,915

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Solution

The fourth proportional to 103,627, 143,005.26 and 58,915 is: 81,302.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,627 : 143,005.26 = 58,915 : x
  2. Step 2: Convert to fraction form
    103,627/143,005.26 = 58,915/x
  3. Step 3: Cross multiply
    103,627x = 143,005.26 × 58,915
  4. Step 4: Simplify right side
    103,627x = 8,425,154,892.90
  5. Step 5: Solve for x
    x = 8,425,154,892.90/103,627
  6. Step 6: Final answer
    x = 81,302.70

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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.