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Finding the Fourth Proportional to 189,159.84, 261,041.40 and 104,275.08

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Solution

The fourth proportional to 189,159.84, 261,041.40 and 104,275.08 is: 143,900.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,159.84 : 261,041.40 = 104,275.08 : x
  2. Step 2: Convert to fraction form
    189,159.84/261,041.40 = 104,275.08/x
  3. Step 3: Cross multiply
    189,159.84x = 261,041.40 × 104,275.08
  4. Step 4: Simplify right side
    189,159.84x = 27,220,112,868.31
  5. Step 5: Solve for x
    x = 27,220,112,868.31/189,159.84
  6. Step 6: Final answer
    x = 143,900.06

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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.