Home / 103,666.20-143,060.90-61,224.63

Finding the Fourth Proportional to 103,666.20, 143,060.90 and 61,224.63

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Solution

The fourth proportional to 103,666.20, 143,060.90 and 61,224.63 is: 84,490.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,666.20 : 143,060.90 = 61,224.63 : x
  2. Step 2: Convert to fraction form
    103,666.20/143,060.90 = 61,224.63/x
  3. Step 3: Cross multiply
    103,666.20x = 143,060.90 × 61,224.63
  4. Step 4: Simplify right side
    103,666.20x = 8,758,850,363.84
  5. Step 5: Solve for x
    x = 8,758,850,363.84/103,666.20
  6. Step 6: Final answer
    x = 84,490.90

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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.