Home / 165,195.39-247,872.47-90,312.51

Finding the Fourth Proportional to 165,195.39, 247,872.47 and 90,312.51

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Solution

The fourth proportional to 165,195.39, 247,872.47 and 90,312.51 is: 135,512.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,195.39 : 247,872.47 = 90,312.51 : x
  2. Step 2: Convert to fraction form
    165,195.39/247,872.47 = 90,312.51/x
  3. Step 3: Cross multiply
    165,195.39x = 247,872.47 × 90,312.51
  4. Step 4: Simplify right side
    165,195.39x = 22,385,984,474.04
  5. Step 5: Solve for x
    x = 22,385,984,474.04/165,195.39
  6. Step 6: Final answer
    x = 135,512.16

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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.