Home / 154,032.91-212,563.07-86,050.86

Finding the Fourth Proportional to 154,032.91, 212,563.07 and 86,050.86

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Solution

The fourth proportional to 154,032.91, 212,563.07 and 86,050.86 is: 118,748.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,032.91 : 212,563.07 = 86,050.86 : x
  2. Step 2: Convert to fraction form
    154,032.91/212,563.07 = 86,050.86/x
  3. Step 3: Cross multiply
    154,032.91x = 212,563.07 × 86,050.86
  4. Step 4: Simplify right side
    154,032.91x = 18,291,234,073.07
  5. Step 5: Solve for x
    x = 18,291,234,073.07/154,032.91
  6. Step 6: Final answer
    x = 118,748.87

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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.