Home / 117,447.10-162,074.75-66,458.91

Finding the Fourth Proportional to 117,447.10, 162,074.75 and 66,458.91

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Solution

The fourth proportional to 117,447.10, 162,074.75 and 66,458.91 is: 91,712.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,447.10 : 162,074.75 = 66,458.91 : x
  2. Step 2: Convert to fraction form
    117,447.10/162,074.75 = 66,458.91/x
  3. Step 3: Cross multiply
    117,447.10x = 162,074.75 × 66,458.91
  4. Step 4: Simplify right side
    117,447.10x = 10,771,311,223.52
  5. Step 5: Solve for x
    x = 10,771,311,223.52/117,447.10
  6. Step 6: Final answer
    x = 91,712.02

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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.