Home / 154,032-212,552.64-86,962.56

Finding the Fourth Proportional to 154,032, 212,552.64 and 86,962.56

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Solution

The fourth proportional to 154,032, 212,552.64 and 86,962.56 is: 120,001.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,032 : 212,552.64 = 86,962.56 : x
  2. Step 2: Convert to fraction form
    154,032/212,552.64 = 86,962.56/x
  3. Step 3: Cross multiply
    154,032x = 212,552.64 × 86,962.56
  4. Step 4: Simplify right side
    154,032x = 18,484,121,709.16
  5. Step 5: Solve for x
    x = 18,484,121,709.16/154,032
  6. Step 6: Final answer
    x = 120,001.83

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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.