Home / 154,962.73-213,832.12-86,987.18

Finding the Fourth Proportional to 154,962.73, 213,832.12 and 86,987.18

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Solution

The fourth proportional to 154,962.73, 213,832.12 and 86,987.18 is: 120,033.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,962.73 : 213,832.12 = 86,987.18 : x
  2. Step 2: Convert to fraction form
    154,962.73/213,832.12 = 86,987.18/x
  3. Step 3: Cross multiply
    154,962.73x = 213,832.12 × 86,987.18
  4. Step 4: Simplify right side
    154,962.73x = 18,600,653,112.22
  5. Step 5: Solve for x
    x = 18,600,653,112.22/154,962.73
  6. Step 6: Final answer
    x = 120,033.08

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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.