Home / 189,131.93-261,000.39-103,090.93

Finding the Fourth Proportional to 189,131.93, 261,000.39 and 103,090.93

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Solution

The fourth proportional to 189,131.93, 261,000.39 and 103,090.93 is: 142,264.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,131.93 : 261,000.39 = 103,090.93 : x
  2. Step 2: Convert to fraction form
    189,131.93/261,000.39 = 103,090.93/x
  3. Step 3: Cross multiply
    189,131.93x = 261,000.39 × 103,090.93
  4. Step 4: Simplify right side
    189,131.93x = 26,906,772,669.55
  5. Step 5: Solve for x
    x = 26,906,772,669.55/189,131.93
  6. Step 6: Final answer
    x = 142,264.57

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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.