Home / 100,270.54-138,360.18-59,969.60

Finding the Fourth Proportional to 100,270.54, 138,360.18 and 59,969.60

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Solution

The fourth proportional to 100,270.54, 138,360.18 and 59,969.60 is: 82,750.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,270.54 : 138,360.18 = 59,969.60 : x
  2. Step 2: Convert to fraction form
    100,270.54/138,360.18 = 59,969.60/x
  3. Step 3: Cross multiply
    100,270.54x = 138,360.18 × 59,969.60
  4. Step 4: Simplify right side
    100,270.54x = 8,297,404,702.46
  5. Step 5: Solve for x
    x = 8,297,404,702.46/100,270.54
  6. Step 6: Final answer
    x = 82,750.17

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1.5x scale

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.