Home / 154,127.34-212,691.48-86,144.58

Finding the Fourth Proportional to 154,127.34, 212,691.48 and 86,144.58

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Solution

The fourth proportional to 154,127.34, 212,691.48 and 86,144.58 is: 118,877.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,127.34 : 212,691.48 = 86,144.58 : x
  2. Step 2: Convert to fraction form
    154,127.34/212,691.48 = 86,144.58/x
  3. Step 3: Cross multiply
    154,127.34x = 212,691.48 × 86,144.58
  4. Step 4: Simplify right side
    154,127.34x = 18,322,218,214.18
  5. Step 5: Solve for x
    x = 18,322,218,214.18/154,127.34
  6. Step 6: Final answer
    x = 118,877.15

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1.5x scale

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.