Home / 118,308.16-176,556.74-105,686.43

Finding the Fourth Proportional to 118,308.16, 176,556.74 and 105,686.43

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Solution

The fourth proportional to 118,308.16, 176,556.74 and 105,686.43 is: 157,720.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,308.16 : 176,556.74 = 105,686.43 : x
  2. Step 2: Convert to fraction form
    118,308.16/176,556.74 = 105,686.43/x
  3. Step 3: Cross multiply
    118,308.16x = 176,556.74 × 105,686.43
  4. Step 4: Simplify right side
    118,308.16x = 18,659,651,543.04
  5. Step 5: Solve for x
    x = 18,659,651,543.04/118,308.16
  6. Step 6: Final answer
    x = 157,720.75

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.