Home / 154,104.24-212,664.64-86,122.35

Finding the Fourth Proportional to 154,104.24, 212,664.64 and 86,122.35

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Solution

The fourth proportional to 154,104.24, 212,664.64 and 86,122.35 is: 118,849.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,104.24 : 212,664.64 = 86,122.35 : x
  2. Step 2: Convert to fraction form
    154,104.24/212,664.64 = 86,122.35/x
  3. Step 3: Cross multiply
    154,104.24x = 212,664.64 × 86,122.35
  4. Step 4: Simplify right side
    154,104.24x = 18,315,178,558.70
  5. Step 5: Solve for x
    x = 18,315,178,558.70/154,104.24
  6. Step 6: Final answer
    x = 118,849.28

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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.