Home / 135,342.08-186,950.56-103,899.52

Finding the Fourth Proportional to 135,342.08, 186,950.56 and 103,899.52

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Solution

The fourth proportional to 135,342.08, 186,950.56 and 103,899.52 is: 143,518.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,342.08 : 186,950.56 = 103,899.52 : x
  2. Step 2: Convert to fraction form
    135,342.08/186,950.56 = 103,899.52/x
  3. Step 3: Cross multiply
    135,342.08x = 186,950.56 × 103,899.52
  4. Step 4: Simplify right side
    135,342.08x = 19,424,073,447.73
  5. Step 5: Solve for x
    x = 19,424,073,447.73/135,342.08
  6. Step 6: Final answer
    x = 143,518.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.