Home / 115,386.20-173,156.70-40,506.20

Finding the Fourth Proportional to 115,386.20, 173,156.70 and 40,506.20

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Solution

The fourth proportional to 115,386.20, 173,156.70 and 40,506.20 is: 60,786.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,386.20 : 173,156.70 = 40,506.20 : x
  2. Step 2: Convert to fraction form
    115,386.20/173,156.70 = 40,506.20/x
  3. Step 3: Cross multiply
    115,386.20x = 173,156.70 × 40,506.20
  4. Step 4: Simplify right side
    115,386.20x = 7,013,919,921.54
  5. Step 5: Solve for x
    x = 7,013,919,921.54/115,386.20
  6. Step 6: Final answer
    x = 60,786.47

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1.5x scale

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.