Home / 121,411.15-182,116.73-109,601.35

Finding the Fourth Proportional to 121,411.15, 182,116.73 and 109,601.35

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Solution

The fourth proportional to 121,411.15, 182,116.73 and 109,601.35 is: 164,402.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,411.15 : 182,116.73 = 109,601.35 : x
  2. Step 2: Convert to fraction form
    121,411.15/182,116.73 = 109,601.35/x
  3. Step 3: Cross multiply
    121,411.15x = 182,116.73 × 109,601.35
  4. Step 4: Simplify right side
    121,411.15x = 19,960,239,465.59
  5. Step 5: Solve for x
    x = 19,960,239,465.59/121,411.15
  6. Step 6: Final answer
    x = 164,402.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.