Home / 133,106.21-183,685.18-72,676.67

Finding the Fourth Proportional to 133,106.21, 183,685.18 and 72,676.67

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Solution

The fourth proportional to 133,106.21, 183,685.18 and 72,676.67 is: 100,293.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,106.21 : 183,685.18 = 72,676.67 : x
  2. Step 2: Convert to fraction form
    133,106.21/183,685.18 = 72,676.67/x
  3. Step 3: Cross multiply
    133,106.21x = 183,685.18 × 72,676.67
  4. Step 4: Simplify right side
    133,106.21x = 13,349,627,484.53
  5. Step 5: Solve for x
    x = 13,349,627,484.53/133,106.21
  6. Step 6: Final answer
    x = 100,293.04

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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.