Home / 123,437.20-185,155.80-113,814.40

Finding the Fourth Proportional to 123,437.20, 185,155.80 and 113,814.40

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Solution

The fourth proportional to 123,437.20, 185,155.80 and 113,814.40 is: 170,721.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,437.20 : 185,155.80 = 113,814.40 : x
  2. Step 2: Convert to fraction form
    123,437.20/185,155.80 = 113,814.40/x
  3. Step 3: Cross multiply
    123,437.20x = 185,155.80 × 113,814.40
  4. Step 4: Simplify right side
    123,437.20x = 21,073,396,283.52
  5. Step 5: Solve for x
    x = 21,073,396,283.52/123,437.20
  6. Step 6: Final answer
    x = 170,721.60

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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.