Home / 136,575.56-188,475.68-79,218.74

Finding the Fourth Proportional to 136,575.56, 188,475.68 and 79,218.74

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Solution

The fourth proportional to 136,575.56, 188,475.68 and 79,218.74 is: 109,322.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,575.56 : 188,475.68 = 79,218.74 : x
  2. Step 2: Convert to fraction form
    136,575.56/188,475.68 = 79,218.74/x
  3. Step 3: Cross multiply
    136,575.56x = 188,475.68 × 79,218.74
  4. Step 4: Simplify right side
    136,575.56x = 14,930,804,551.77
  5. Step 5: Solve for x
    x = 14,930,804,551.77/136,575.56
  6. Step 6: Final answer
    x = 109,322.67

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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.