Home / 136,922.40-205,294.80-58,015.20

Finding the Fourth Proportional to 136,922.40, 205,294.80 and 58,015.20

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Solution

The fourth proportional to 136,922.40, 205,294.80 and 58,015.20 is: 86,985.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,922.40 : 205,294.80 = 58,015.20 : x
  2. Step 2: Convert to fraction form
    136,922.40/205,294.80 = 58,015.20/x
  3. Step 3: Cross multiply
    136,922.40x = 205,294.80 × 58,015.20
  4. Step 4: Simplify right side
    136,922.40x = 11,910,218,880.96
  5. Step 5: Solve for x
    x = 11,910,218,880.96/136,922.40
  6. Step 6: Final answer
    x = 86,985.17

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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.