Home / 118,266.90-177,428.70-39,381.81

Finding the Fourth Proportional to 118,266.90, 177,428.70 and 39,381.81

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Solution

The fourth proportional to 118,266.90, 177,428.70 and 39,381.81 is: 59,082.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,266.90 : 177,428.70 = 39,381.81 : x
  2. Step 2: Convert to fraction form
    118,266.90/177,428.70 = 39,381.81/x
  3. Step 3: Cross multiply
    118,266.90x = 177,428.70 × 39,381.81
  4. Step 4: Simplify right side
    118,266.90x = 6,987,463,351.95
  5. Step 5: Solve for x
    x = 6,987,463,351.95/118,266.90
  6. Step 6: Final answer
    x = 59,082.16

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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.