Home / 154,051.76-212,587.52-86,069.24

Finding the Fourth Proportional to 154,051.76, 212,587.52 and 86,069.24

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Solution

The fourth proportional to 154,051.76, 212,587.52 and 86,069.24 is: 118,773.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,051.76 : 212,587.52 = 86,069.24 : x
  2. Step 2: Convert to fraction form
    154,051.76/212,587.52 = 86,069.24/x
  3. Step 3: Cross multiply
    154,051.76x = 212,587.52 × 86,069.24
  4. Step 4: Simplify right side
    154,051.76x = 18,297,246,279.88
  5. Step 5: Solve for x
    x = 18,297,246,279.88/154,051.76
  6. Step 6: Final answer
    x = 118,773.37

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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.