Home / 139,883.08-209,854.46-45,118.59

Finding the Fourth Proportional to 139,883.08, 209,854.46 and 45,118.59

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Solution

The fourth proportional to 139,883.08, 209,854.46 and 45,118.59 is: 67,687.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,883.08 : 209,854.46 = 45,118.59 : x
  2. Step 2: Convert to fraction form
    139,883.08/209,854.46 = 45,118.59/x
  3. Step 3: Cross multiply
    139,883.08x = 209,854.46 × 45,118.59
  4. Step 4: Simplify right side
    139,883.08x = 9,468,337,340.41
  5. Step 5: Solve for x
    x = 9,468,337,340.41/139,883.08
  6. Step 6: Final answer
    x = 67,687.51

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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.