Home / 189,137.31-261,001.63-103,094.40

Finding the Fourth Proportional to 189,137.31, 261,001.63 and 103,094.40

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Solution

The fourth proportional to 189,137.31, 261,001.63 and 103,094.40 is: 142,265.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,137.31 : 261,001.63 = 103,094.40 : x
  2. Step 2: Convert to fraction form
    189,137.31/261,001.63 = 103,094.40/x
  3. Step 3: Cross multiply
    189,137.31x = 261,001.63 × 103,094.40
  4. Step 4: Simplify right side
    189,137.31x = 26,907,806,186.14
  5. Step 5: Solve for x
    x = 26,907,806,186.14/189,137.31
  6. Step 6: Final answer
    x = 142,265.99

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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.