Home / 154,256.34-212,872.26-86,272.50

Finding the Fourth Proportional to 154,256.34, 212,872.26 and 86,272.50

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Solution

The fourth proportional to 154,256.34, 212,872.26 and 86,272.50 is: 119,055.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,256.34 : 212,872.26 = 86,272.50 : x
  2. Step 2: Convert to fraction form
    154,256.34/212,872.26 = 86,272.50/x
  3. Step 3: Cross multiply
    154,256.34x = 212,872.26 × 86,272.50
  4. Step 4: Simplify right side
    154,256.34x = 18,365,022,050.85
  5. Step 5: Solve for x
    x = 18,365,022,050.85/154,256.34
  6. Step 6: Final answer
    x = 119,055.22

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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.