Home / 136,368.42-188,188.38-79,790.76

Finding the Fourth Proportional to 136,368.42, 188,188.38 and 79,790.76

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Solution

The fourth proportional to 136,368.42, 188,188.38 and 79,790.76 is: 110,111.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,368.42 : 188,188.38 = 79,790.76 : x
  2. Step 2: Convert to fraction form
    136,368.42/188,188.38 = 79,790.76/x
  3. Step 3: Cross multiply
    136,368.42x = 188,188.38 × 79,790.76
  4. Step 4: Simplify right side
    136,368.42x = 15,015,693,863.37
  5. Step 5: Solve for x
    x = 15,015,693,863.37/136,368.42
  6. Step 6: Final answer
    x = 110,111.23

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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.