Home / 137,457.24-205,835.85-90,567.96

Finding the Fourth Proportional to 137,457.24, 205,835.85 and 90,567.96

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Solution

The fourth proportional to 137,457.24, 205,835.85 and 90,567.96 is: 135,621.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,457.24 : 205,835.85 = 90,567.96 : x
  2. Step 2: Convert to fraction form
    137,457.24/205,835.85 = 90,567.96/x
  3. Step 3: Cross multiply
    137,457.24x = 205,835.85 × 90,567.96
  4. Step 4: Simplify right side
    137,457.24x = 18,642,133,029.37
  5. Step 5: Solve for x
    x = 18,642,133,029.37/137,457.24
  6. Step 6: Final answer
    x = 135,621.33

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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.