Home / 154,034.90-212,565.82-86,052.86

Finding the Fourth Proportional to 154,034.90, 212,565.82 and 86,052.86

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Solution

The fourth proportional to 154,034.90, 212,565.82 and 86,052.86 is: 118,751.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,034.90 : 212,565.82 = 86,052.86 : x
  2. Step 2: Convert to fraction form
    154,034.90/212,565.82 = 86,052.86/x
  3. Step 3: Cross multiply
    154,034.90x = 212,565.82 × 86,052.86
  4. Step 4: Simplify right side
    154,034.90x = 18,291,896,749.25
  5. Step 5: Solve for x
    x = 18,291,896,749.25/154,034.90
  6. Step 6: Final answer
    x = 118,751.64

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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.