Home / 120,510.36-166,217.94-79,627.13

Finding the Fourth Proportional to 120,510.36, 166,217.94 and 79,627.13

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Solution

The fourth proportional to 120,510.36, 166,217.94 and 79,627.13 is: 109,828.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,510.36 : 166,217.94 = 79,627.13 : x
  2. Step 2: Convert to fraction form
    120,510.36/166,217.94 = 79,627.13/x
  3. Step 3: Cross multiply
    120,510.36x = 166,217.94 × 79,627.13
  4. Step 4: Simplify right side
    120,510.36x = 13,235,457,516.71
  5. Step 5: Solve for x
    x = 13,235,457,516.71/120,510.36
  6. Step 6: Final answer
    x = 109,828.38

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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.