Home / 103,623.10-142,999.88-58,911.10

Finding the Fourth Proportional to 103,623.10, 142,999.88 and 58,911.10

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Solution

The fourth proportional to 103,623.10, 142,999.88 and 58,911.10 is: 81,297.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,623.10 : 142,999.88 = 58,911.10 : x
  2. Step 2: Convert to fraction form
    103,623.10/142,999.88 = 58,911.10/x
  3. Step 3: Cross multiply
    103,623.10x = 142,999.88 × 58,911.10
  4. Step 4: Simplify right side
    103,623.10x = 8,424,279,578.61
  5. Step 5: Solve for x
    x = 8,424,279,578.61/103,623.10
  6. Step 6: Final answer
    x = 81,297.31

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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.