Home / 169,720.20-254,547.90-51,395.40

Finding the Fourth Proportional to 169,720.20, 254,547.90 and 51,395.40

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Solution

The fourth proportional to 169,720.20, 254,547.90 and 51,395.40 is: 77,083.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,720.20 : 254,547.90 = 51,395.40 : x
  2. Step 2: Convert to fraction form
    169,720.20/254,547.90 = 51,395.40/x
  3. Step 3: Cross multiply
    169,720.20x = 254,547.90 × 51,395.40
  4. Step 4: Simplify right side
    169,720.20x = 13,082,591,139.66
  5. Step 5: Solve for x
    x = 13,082,591,139.66/169,720.20
  6. Step 6: Final answer
    x = 77,083.29

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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.