Home / 111,530.54-153,910.23-61,229.18

Finding the Fourth Proportional to 111,530.54, 153,910.23 and 61,229.18

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Solution

The fourth proportional to 111,530.54, 153,910.23 and 61,229.18 is: 84,495.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,530.54 : 153,910.23 = 61,229.18 : x
  2. Step 2: Convert to fraction form
    111,530.54/153,910.23 = 61,229.18/x
  3. Step 3: Cross multiply
    111,530.54x = 153,910.23 × 61,229.18
  4. Step 4: Simplify right side
    111,530.54x = 9,423,797,176.51
  5. Step 5: Solve for x
    x = 9,423,797,176.51/111,530.54
  6. Step 6: Final answer
    x = 84,495.22

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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.