Home / 112,642.40-168,777.01-79,199.07

Finding the Fourth Proportional to 112,642.40, 168,777.01 and 79,199.07

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Solution

The fourth proportional to 112,642.40, 168,777.01 and 79,199.07 is: 118,667.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,642.40 : 168,777.01 = 79,199.07 : x
  2. Step 2: Convert to fraction form
    112,642.40/168,777.01 = 79,199.07/x
  3. Step 3: Cross multiply
    112,642.40x = 168,777.01 × 79,199.07
  4. Step 4: Simplify right side
    112,642.40x = 13,366,981,472.72
  5. Step 5: Solve for x
    x = 13,366,981,472.72/112,642.40
  6. Step 6: Final answer
    x = 118,667.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.