Home / 134,405.70-185,402.61-84,017.22

Finding the Fourth Proportional to 134,405.70, 185,402.61 and 84,017.22

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Solution

The fourth proportional to 134,405.70, 185,402.61 and 84,017.22 is: 115,895.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,405.70 : 185,402.61 = 84,017.22 : x
  2. Step 2: Convert to fraction form
    134,405.70/185,402.61 = 84,017.22/x
  3. Step 3: Cross multiply
    134,405.70x = 185,402.61 × 84,017.22
  4. Step 4: Simplify right side
    134,405.70x = 15,577,011,872.94
  5. Step 5: Solve for x
    x = 15,577,011,872.94/134,405.70
  6. Step 6: Final answer
    x = 115,895.47

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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.