Home / 154,055.68-212,575.92-86,064.28

Finding the Fourth Proportional to 154,055.68, 212,575.92 and 86,064.28

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Solution

The fourth proportional to 154,055.68, 212,575.92 and 86,064.28 is: 118,757.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,055.68 : 212,575.92 = 86,064.28 : x
  2. Step 2: Convert to fraction form
    154,055.68/212,575.92 = 86,064.28/x
  3. Step 3: Cross multiply
    154,055.68x = 212,575.92 × 86,064.28
  4. Step 4: Simplify right side
    154,055.68x = 18,295,193,500.14
  5. Step 5: Solve for x
    x = 18,295,193,500.14/154,055.68
  6. Step 6: Final answer
    x = 118,757.02

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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.