Home / 189,851.12-261,971.64-104,956.64

Finding the Fourth Proportional to 189,851.12, 261,971.64 and 104,956.64

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Solution

The fourth proportional to 189,851.12, 261,971.64 and 104,956.64 is: 144,827.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,851.12 : 261,971.64 = 104,956.64 : x
  2. Step 2: Convert to fraction form
    189,851.12/261,971.64 = 104,956.64/x
  3. Step 3: Cross multiply
    189,851.12x = 261,971.64 × 104,956.64
  4. Step 4: Simplify right side
    189,851.12x = 27,495,663,109.69
  5. Step 5: Solve for x
    x = 27,495,663,109.69/189,851.12
  6. Step 6: Final answer
    x = 144,827.50

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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.