Home / 117,418.69-162,122.04-72,157.36

Finding the Fourth Proportional to 117,418.69, 162,122.04 and 72,157.36

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Solution

The fourth proportional to 117,418.69, 162,122.04 and 72,157.36 is: 99,628.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,418.69 : 162,122.04 = 72,157.36 : x
  2. Step 2: Convert to fraction form
    117,418.69/162,122.04 = 72,157.36/x
  3. Step 3: Cross multiply
    117,418.69x = 162,122.04 × 72,157.36
  4. Step 4: Simplify right side
    117,418.69x = 11,698,298,151.33
  5. Step 5: Solve for x
    x = 11,698,298,151.33/117,418.69
  6. Step 6: Final answer
    x = 99,628.93

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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.