Home / 118,389.11-177,661.51-43,509.90

Finding the Fourth Proportional to 118,389.11, 177,661.51 and 43,509.90

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Solution

The fourth proportional to 118,389.11, 177,661.51 and 43,509.90 is: 65,293.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,389.11 : 177,661.51 = 43,509.90 : x
  2. Step 2: Convert to fraction form
    118,389.11/177,661.51 = 43,509.90/x
  3. Step 3: Cross multiply
    118,389.11x = 177,661.51 × 43,509.90
  4. Step 4: Simplify right side
    118,389.11x = 7,730,034,336.80
  5. Step 5: Solve for x
    x = 7,730,034,336.80/118,389.11
  6. Step 6: Final answer
    x = 65,293.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.