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Finding the Fourth Proportional to 111,210, 153,469.80 and 60,910.08

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Solution

The fourth proportional to 111,210, 153,469.80 and 60,910.08 is: 84,055.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,210 : 153,469.80 = 60,910.08 : x
  2. Step 2: Convert to fraction form
    111,210/153,469.80 = 60,910.08/x
  3. Step 3: Cross multiply
    111,210x = 153,469.80 × 60,910.08
  4. Step 4: Simplify right side
    111,210x = 9,347,857,795.58
  5. Step 5: Solve for x
    x = 9,347,857,795.58/111,210
  6. Step 6: Final answer
    x = 84,055.91

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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.