Home / 114,640.26-172,077.03-77,082.18

Finding the Fourth Proportional to 114,640.26, 172,077.03 and 77,082.18

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Solution

The fourth proportional to 114,640.26, 172,077.03 and 77,082.18 is: 115,701.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,640.26 : 172,077.03 = 77,082.18 : x
  2. Step 2: Convert to fraction form
    114,640.26/172,077.03 = 77,082.18/x
  3. Step 3: Cross multiply
    114,640.26x = 172,077.03 × 77,082.18
  4. Step 4: Simplify right side
    114,640.26x = 13,264,072,600.33
  5. Step 5: Solve for x
    x = 13,264,072,600.33/114,640.26
  6. Step 6: Final answer
    x = 115,701.70

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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.