Home / 111,269.49-153,558.05-63,538.17

Finding the Fourth Proportional to 111,269.49, 153,558.05 and 63,538.17

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Solution

The fourth proportional to 111,269.49, 153,558.05 and 63,538.17 is: 87,686.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,269.49 : 153,558.05 = 63,538.17 : x
  2. Step 2: Convert to fraction form
    111,269.49/153,558.05 = 63,538.17/x
  3. Step 3: Cross multiply
    111,269.49x = 153,558.05 × 63,538.17
  4. Step 4: Simplify right side
    111,269.49x = 9,756,797,168.08
  5. Step 5: Solve for x
    x = 9,756,797,168.08/111,269.49
  6. Step 6: Final answer
    x = 87,686.19

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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.