Home / 124,844.28-172,300.20-70,406.80

Finding the Fourth Proportional to 124,844.28, 172,300.20 and 70,406.80

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Solution

The fourth proportional to 124,844.28, 172,300.20 and 70,406.80 is: 97,169.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,844.28 : 172,300.20 = 70,406.80 : x
  2. Step 2: Convert to fraction form
    124,844.28/172,300.20 = 70,406.80/x
  3. Step 3: Cross multiply
    124,844.28x = 172,300.20 × 70,406.80
  4. Step 4: Simplify right side
    124,844.28x = 12,131,105,721.36
  5. Step 5: Solve for x
    x = 12,131,105,721.36/124,844.28
  6. Step 6: Final answer
    x = 97,169.90

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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.