Home / 136,533.44-188,417-76,107.92

Finding the Fourth Proportional to 136,533.44, 188,417 and 76,107.92

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Solution

The fourth proportional to 136,533.44, 188,417 and 76,107.92 is: 105,029.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,533.44 : 188,417 = 76,107.92 : x
  2. Step 2: Convert to fraction form
    136,533.44/188,417 = 76,107.92/x
  3. Step 3: Cross multiply
    136,533.44x = 188,417 × 76,107.92
  4. Step 4: Simplify right side
    136,533.44x = 14,340,025,962.64
  5. Step 5: Solve for x
    x = 14,340,025,962.64/136,533.44
  6. Step 6: Final answer
    x = 105,029.40

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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.