Home / 154,151.30-212,724.33-86,168.41

Finding the Fourth Proportional to 154,151.30, 212,724.33 and 86,168.41

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Solution

The fourth proportional to 154,151.30, 212,724.33 and 86,168.41 is: 118,909.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,151.30 : 212,724.33 = 86,168.41 : x
  2. Step 2: Convert to fraction form
    154,151.30/212,724.33 = 86,168.41/x
  3. Step 3: Cross multiply
    154,151.30x = 212,724.33 × 86,168.41
  4. Step 4: Simplify right side
    154,151.30x = 18,330,116,429.47
  5. Step 5: Solve for x
    x = 18,330,116,429.47/154,151.30
  6. Step 6: Final answer
    x = 118,909.90

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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.