Home / 136,477.19-188,342.48-79,116.74

Finding the Fourth Proportional to 136,477.19, 188,342.48 and 79,116.74

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Solution

The fourth proportional to 136,477.19, 188,342.48 and 79,116.74 is: 109,183.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,477.19 : 188,342.48 = 79,116.74 : x
  2. Step 2: Convert to fraction form
    136,477.19/188,342.48 = 79,116.74/x
  3. Step 3: Cross multiply
    136,477.19x = 188,342.48 × 79,116.74
  4. Step 4: Simplify right side
    136,477.19x = 14,901,043,021.12
  5. Step 5: Solve for x
    x = 14,901,043,021.12/136,477.19
  6. Step 6: Final answer
    x = 109,183.40

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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.