Home / 154,026.63-212,542.88-86,037.66

Finding the Fourth Proportional to 154,026.63, 212,542.88 and 86,037.66

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Solution

The fourth proportional to 154,026.63, 212,542.88 and 86,037.66 is: 118,724.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,026.63 : 212,542.88 = 86,037.66 : x
  2. Step 2: Convert to fraction form
    154,026.63/212,542.88 = 86,037.66/x
  3. Step 3: Cross multiply
    154,026.63x = 212,542.88 × 86,037.66
  4. Step 4: Simplify right side
    154,026.63x = 18,286,692,044.86
  5. Step 5: Solve for x
    x = 18,286,692,044.86/154,026.63
  6. Step 6: Final answer
    x = 118,724.22

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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.