Home / 88,034.89-121,513.08-72,157.27

Finding the Fourth Proportional to 88,034.89, 121,513.08 and 72,157.27

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Solution

The fourth proportional to 88,034.89, 121,513.08 and 72,157.27 is: 99,597.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,034.89 : 121,513.08 = 72,157.27 : x
  2. Step 2: Convert to fraction form
    88,034.89/121,513.08 = 72,157.27/x
  3. Step 3: Cross multiply
    88,034.89x = 121,513.08 × 72,157.27
  4. Step 4: Simplify right side
    88,034.89x = 8,768,052,122.09
  5. Step 5: Solve for x
    x = 8,768,052,122.09/88,034.89
  6. Step 6: Final answer
    x = 99,597.47

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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.