Home / 154,417.52-213,086.31-86,423.04

Finding the Fourth Proportional to 154,417.52, 213,086.31 and 86,423.04

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Solution

The fourth proportional to 154,417.52, 213,086.31 and 86,423.04 is: 119,258.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,417.52 : 213,086.31 = 86,423.04 : x
  2. Step 2: Convert to fraction form
    154,417.52/213,086.31 = 86,423.04/x
  3. Step 3: Cross multiply
    154,417.52x = 213,086.31 × 86,423.04
  4. Step 4: Simplify right side
    154,417.52x = 18,415,566,692.58
  5. Step 5: Solve for x
    x = 18,415,566,692.58/154,417.52
  6. Step 6: Final answer
    x = 119,258.28

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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.