Home / 137,460.24-205,840.34-90,570.96

Finding the Fourth Proportional to 137,460.24, 205,840.34 and 90,570.96

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Solution

The fourth proportional to 137,460.24, 205,840.34 and 90,570.96 is: 135,625.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,460.24 : 205,840.34 = 90,570.96 : x
  2. Step 2: Convert to fraction form
    137,460.24/205,840.34 = 90,570.96/x
  3. Step 3: Cross multiply
    137,460.24x = 205,840.34 × 90,570.96
  4. Step 4: Simplify right side
    137,460.24x = 18,643,157,200.53
  5. Step 5: Solve for x
    x = 18,643,157,200.53/137,460.24
  6. Step 6: Final answer
    x = 135,625.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.