Home / 111,710.07-154,316.54-101,620.71

Finding the Fourth Proportional to 111,710.07, 154,316.54 and 101,620.71

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Solution

The fourth proportional to 111,710.07, 154,316.54 and 101,620.71 is: 140,379.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,710.07 : 154,316.54 = 101,620.71 : x
  2. Step 2: Convert to fraction form
    111,710.07/154,316.54 = 101,620.71/x
  3. Step 3: Cross multiply
    111,710.07x = 154,316.54 × 101,620.71
  4. Step 4: Simplify right side
    111,710.07x = 15,681,756,613.60
  5. Step 5: Solve for x
    x = 15,681,756,613.60/111,710.07
  6. Step 6: Final answer
    x = 140,379.08

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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.