Home / 136,449.36-188,298.88-76,018.91

Finding the Fourth Proportional to 136,449.36, 188,298.88 and 76,018.91

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Solution

The fourth proportional to 136,449.36, 188,298.88 and 76,018.91 is: 104,905.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,449.36 : 188,298.88 = 76,018.91 : x
  2. Step 2: Convert to fraction form
    136,449.36/188,298.88 = 76,018.91/x
  3. Step 3: Cross multiply
    136,449.36x = 188,298.88 × 76,018.91
  4. Step 4: Simplify right side
    136,449.36x = 14,314,274,480.28
  5. Step 5: Solve for x
    x = 14,314,274,480.28/136,449.36
  6. Step 6: Final answer
    x = 104,905.40

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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.