Home / 88,713.21-122,113.48-77,362.68

Finding the Fourth Proportional to 88,713.21, 122,113.48 and 77,362.68

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Solution

The fourth proportional to 88,713.21, 122,113.48 and 77,362.68 is: 106,489.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,713.21 : 122,113.48 = 77,362.68 : x
  2. Step 2: Convert to fraction form
    88,713.21/122,113.48 = 77,362.68/x
  3. Step 3: Cross multiply
    88,713.21x = 122,113.48 × 77,362.68
  4. Step 4: Simplify right side
    88,713.21x = 9,447,026,270.33
  5. Step 5: Solve for x
    x = 9,447,026,270.33/88,713.21
  6. Step 6: Final answer
    x = 106,489.51

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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.