Home / 111,414.65-153,771.86-66,117.59

Finding the Fourth Proportional to 111,414.65, 153,771.86 and 66,117.59

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Solution

The fourth proportional to 111,414.65, 153,771.86 and 66,117.59 is: 91,253.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,414.65 : 153,771.86 = 66,117.59 : x
  2. Step 2: Convert to fraction form
    111,414.65/153,771.86 = 66,117.59/x
  3. Step 3: Cross multiply
    111,414.65x = 153,771.86 × 66,117.59
  4. Step 4: Simplify right side
    111,414.65x = 10,167,025,342.74
  5. Step 5: Solve for x
    x = 10,167,025,342.74/111,414.65
  6. Step 6: Final answer
    x = 91,253.93

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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.