Home / 133,172.90-183,771.57-72,742.67

Finding the Fourth Proportional to 133,172.90, 183,771.57 and 72,742.67

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Solution

The fourth proportional to 133,172.90, 183,771.57 and 72,742.67 is: 100,381.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,172.90 : 183,771.57 = 72,742.67 : x
  2. Step 2: Convert to fraction form
    133,172.90/183,771.57 = 72,742.67/x
  3. Step 3: Cross multiply
    133,172.90x = 183,771.57 × 72,742.67
  4. Step 4: Simplify right side
    133,172.90x = 13,368,034,671.89
  5. Step 5: Solve for x
    x = 13,368,034,671.89/133,172.90
  6. Step 6: Final answer
    x = 100,381.04

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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.