Home / 139,539.96-209,308.23-34,359.84

Finding the Fourth Proportional to 139,539.96, 209,308.23 and 34,359.84

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Solution

The fourth proportional to 139,539.96, 209,308.23 and 34,359.84 is: 51,539.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,539.96 : 209,308.23 = 34,359.84 : x
  2. Step 2: Convert to fraction form
    139,539.96/209,308.23 = 34,359.84/x
  3. Step 3: Cross multiply
    139,539.96x = 209,308.23 × 34,359.84
  4. Step 4: Simplify right side
    139,539.96x = 7,191,797,293.48
  5. Step 5: Solve for x
    x = 7,191,797,293.48/139,539.96
  6. Step 6: Final answer
    x = 51,539.34

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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.