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Finding the Fourth Proportional to 117,323.41, 161,894.18 and 72,003.30

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Solution

The fourth proportional to 117,323.41, 161,894.18 and 72,003.30 is: 99,357.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,323.41 : 161,894.18 = 72,003.30 : x
  2. Step 2: Convert to fraction form
    117,323.41/161,894.18 = 72,003.30/x
  3. Step 3: Cross multiply
    117,323.41x = 161,894.18 × 72,003.30
  4. Step 4: Simplify right side
    117,323.41x = 11,656,915,210.79
  5. Step 5: Solve for x
    x = 11,656,915,210.79/117,323.41
  6. Step 6: Final answer
    x = 99,357.11

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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.