Home / 135,733.18-187,302.90-75,303.68

Finding the Fourth Proportional to 135,733.18, 187,302.90 and 75,303.68

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Solution

The fourth proportional to 135,733.18, 187,302.90 and 75,303.68 is: 103,914.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,733.18 : 187,302.90 = 75,303.68 : x
  2. Step 2: Convert to fraction form
    135,733.18/187,302.90 = 75,303.68/x
  3. Step 3: Cross multiply
    135,733.18x = 187,302.90 × 75,303.68
  4. Step 4: Simplify right side
    135,733.18x = 14,104,597,644.67
  5. Step 5: Solve for x
    x = 14,104,597,644.67/135,733.18
  6. Step 6: Final answer
    x = 103,914.15

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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.