Home / 90,701.03-135,365.64-88,339.07

Finding the Fourth Proportional to 90,701.03, 135,365.64 and 88,339.07

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Solution

The fourth proportional to 90,701.03, 135,365.64 and 88,339.07 is: 131,840.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,701.03 : 135,365.64 = 88,339.07 : x
  2. Step 2: Convert to fraction form
    90,701.03/135,365.64 = 88,339.07/x
  3. Step 3: Cross multiply
    90,701.03x = 135,365.64 × 88,339.07
  4. Step 4: Simplify right side
    90,701.03x = 11,958,074,070.73
  5. Step 5: Solve for x
    x = 11,958,074,070.73/90,701.03
  6. Step 6: Final answer
    x = 131,840.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.