Home / 153,669.54-212,066.58-84,766.91

Finding the Fourth Proportional to 153,669.54, 212,066.58 and 84,766.91

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Solution

The fourth proportional to 153,669.54, 212,066.58 and 84,766.91 is: 116,979.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,669.54 : 212,066.58 = 84,766.91 : x
  2. Step 2: Convert to fraction form
    153,669.54/212,066.58 = 84,766.91/x
  3. Step 3: Cross multiply
    153,669.54x = 212,066.58 × 84,766.91
  4. Step 4: Simplify right side
    153,669.54x = 17,976,229,231.03
  5. Step 5: Solve for x
    x = 17,976,229,231.03/153,669.54
  6. Step 6: Final answer
    x = 116,979.78

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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.