Home / 103,625.36-142,999.80-58,305.88

Finding the Fourth Proportional to 103,625.36, 142,999.80 and 58,305.88

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Solution

The fourth proportional to 103,625.36, 142,999.80 and 58,305.88 is: 80,460.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,625.36 : 142,999.80 = 58,305.88 : x
  2. Step 2: Convert to fraction form
    103,625.36/142,999.80 = 58,305.88/x
  3. Step 3: Cross multiply
    103,625.36x = 142,999.80 × 58,305.88
  4. Step 4: Simplify right side
    103,625.36x = 8,337,729,178.82
  5. Step 5: Solve for x
    x = 8,337,729,178.82/103,625.36
  6. Step 6: Final answer
    x = 80,460.32

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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.