Home / 140,813.28-211,323.60-55,437.12

Finding the Fourth Proportional to 140,813.28, 211,323.60 and 55,437.12

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Solution

The fourth proportional to 140,813.28, 211,323.60 and 55,437.12 is: 83,196.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,813.28 : 211,323.60 = 55,437.12 : x
  2. Step 2: Convert to fraction form
    140,813.28/211,323.60 = 55,437.12/x
  3. Step 3: Cross multiply
    140,813.28x = 211,323.60 × 55,437.12
  4. Step 4: Simplify right side
    140,813.28x = 11,715,171,772.03
  5. Step 5: Solve for x
    x = 11,715,171,772.03/140,813.28
  6. Step 6: Final answer
    x = 83,196.50

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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.