Home / 111,538.04-153,920.58-61,236.68

Finding the Fourth Proportional to 111,538.04, 153,920.58 and 61,236.68

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Solution

The fourth proportional to 111,538.04, 153,920.58 and 61,236.68 is: 84,505.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,538.04 : 153,920.58 = 61,236.68 : x
  2. Step 2: Convert to fraction form
    111,538.04/153,920.58 = 61,236.68/x
  3. Step 3: Cross multiply
    111,538.04x = 153,920.58 × 61,236.68
  4. Step 4: Simplify right side
    111,538.04x = 9,425,585,302.87
  5. Step 5: Solve for x
    x = 9,425,585,302.87/111,538.04
  6. Step 6: Final answer
    x = 84,505.57

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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.