Home / 98,090.42-135,106.94-75,385.96

Finding the Fourth Proportional to 98,090.42, 135,106.94 and 75,385.96

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Solution

The fourth proportional to 98,090.42, 135,106.94 and 75,385.96 is: 103,834.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,090.42 : 135,106.94 = 75,385.96 : x
  2. Step 2: Convert to fraction form
    98,090.42/135,106.94 = 75,385.96/x
  3. Step 3: Cross multiply
    98,090.42x = 135,106.94 × 75,385.96
  4. Step 4: Simplify right side
    98,090.42x = 10,185,166,225.26
  5. Step 5: Solve for x
    x = 10,185,166,225.26/98,090.42
  6. Step 6: Final answer
    x = 103,834.47

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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.