Home / 136,528.24-188,408.54-76,098.20

Finding the Fourth Proportional to 136,528.24, 188,408.54 and 76,098.20

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Solution

The fourth proportional to 136,528.24, 188,408.54 and 76,098.20 is: 105,015.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,528.24 : 188,408.54 = 76,098.20 : x
  2. Step 2: Convert to fraction form
    136,528.24/188,408.54 = 76,098.20/x
  3. Step 3: Cross multiply
    136,528.24x = 188,408.54 × 76,098.20
  4. Step 4: Simplify right side
    136,528.24x = 14,337,550,758.63
  5. Step 5: Solve for x
    x = 14,337,550,758.63/136,528.24
  6. Step 6: Final answer
    x = 105,015.28

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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.