Home / 136,946.90-205,420.35-91,846.10

Finding the Fourth Proportional to 136,946.90, 205,420.35 and 91,846.10

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Solution

The fourth proportional to 136,946.90, 205,420.35 and 91,846.10 is: 137,769.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,946.90 : 205,420.35 = 91,846.10 : x
  2. Step 2: Convert to fraction form
    136,946.90/205,420.35 = 91,846.10/x
  3. Step 3: Cross multiply
    136,946.90x = 205,420.35 × 91,846.10
  4. Step 4: Simplify right side
    136,946.90x = 18,867,058,008.14
  5. Step 5: Solve for x
    x = 18,867,058,008.14/136,946.90
  6. Step 6: Final answer
    x = 137,769.15

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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.