Home / 154,004.34-212,523.75-86,022.28

Finding the Fourth Proportional to 154,004.34, 212,523.75 and 86,022.28

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Solution

The fourth proportional to 154,004.34, 212,523.75 and 86,022.28 is: 118,709.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,004.34 : 212,523.75 = 86,022.28 : x
  2. Step 2: Convert to fraction form
    154,004.34/212,523.75 = 86,022.28/x
  3. Step 3: Cross multiply
    154,004.34x = 212,523.75 × 86,022.28
  4. Step 4: Simplify right side
    154,004.34x = 18,281,777,529.15
  5. Step 5: Solve for x
    x = 18,281,777,529.15/154,004.34
  6. Step 6: Final answer
    x = 118,709.50

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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.