Home / 115,215.40-172,823.10-94,220.20

Finding the Fourth Proportional to 115,215.40, 172,823.10 and 94,220.20

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Solution

The fourth proportional to 115,215.40, 172,823.10 and 94,220.20 is: 141,330.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,215.40 : 172,823.10 = 94,220.20 : x
  2. Step 2: Convert to fraction form
    115,215.40/172,823.10 = 94,220.20/x
  3. Step 3: Cross multiply
    115,215.40x = 172,823.10 × 94,220.20
  4. Step 4: Simplify right side
    115,215.40x = 16,283,427,046.62
  5. Step 5: Solve for x
    x = 16,283,427,046.62/115,215.40
  6. Step 6: Final answer
    x = 141,330.30

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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.