Home / 193,427.20-290,140.80-60,306.40

Finding the Fourth Proportional to 193,427.20, 290,140.80 and 60,306.40

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Solution

The fourth proportional to 193,427.20, 290,140.80 and 60,306.40 is: 90,459.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,427.20 : 290,140.80 = 60,306.40 : x
  2. Step 2: Convert to fraction form
    193,427.20/290,140.80 = 60,306.40/x
  3. Step 3: Cross multiply
    193,427.20x = 290,140.80 × 60,306.40
  4. Step 4: Simplify right side
    193,427.20x = 17,497,347,141.12
  5. Step 5: Solve for x
    x = 17,497,347,141.12/193,427.20
  6. Step 6: Final answer
    x = 90,459.60

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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.