Home / 154,045.60-212,575.32-86,049.08

Finding the Fourth Proportional to 154,045.60, 212,575.32 and 86,049.08

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Solution

The fourth proportional to 154,045.60, 212,575.32 and 86,049.08 is: 118,743.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,045.60 : 212,575.32 = 86,049.08 : x
  2. Step 2: Convert to fraction form
    154,045.60/212,575.32 = 86,049.08/x
  3. Step 3: Cross multiply
    154,045.60x = 212,575.32 × 86,049.08
  4. Step 4: Simplify right side
    154,045.60x = 18,291,910,716.71
  5. Step 5: Solve for x
    x = 18,291,910,716.71/154,045.60
  6. Step 6: Final answer
    x = 118,743.48

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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.