Home / 189,140.06-261,013.29-104,258.95

Finding the Fourth Proportional to 189,140.06, 261,013.29 and 104,258.95

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Solution

The fourth proportional to 189,140.06, 261,013.29 and 104,258.95 is: 143,877.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,140.06 : 261,013.29 = 104,258.95 : x
  2. Step 2: Convert to fraction form
    189,140.06/261,013.29 = 104,258.95/x
  3. Step 3: Cross multiply
    189,140.06x = 261,013.29 × 104,258.95
  4. Step 4: Simplify right side
    189,140.06x = 27,212,970,507.94
  5. Step 5: Solve for x
    x = 27,212,970,507.94/189,140.06
  6. Step 6: Final answer
    x = 143,877.35

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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.